I tried sleeping on carpeted floor. Hurt my hip.
But on the other hand, i’ve always felt (pun intended) that western style mattresses are way thicker than they need to be.
Mattresses, and the principle of … To be continued
I tried sleeping on carpeted floor. Hurt my hip.
But on the other hand, i’ve always felt (pun intended) that western style mattresses are way thicker than they need to be.
But on the other other hand, I don’t understand how western style mattresses now are less than a quarter of the weight they were when i was young.
Mattresses, and the principle of elasticity in general, is often misunderstood. For instance in mythbusters and on youtube (and on “burn notice” by the way) an entirely inappropriate modulus of elasticity is used in making something for safely stopping an object in free-fall.
Taking elasticity in the most general sense as “completely reversible deformation”, I’m looking for the most general theory of elasticity that takes into account pressurised and unpressurised foams, airbed and water bed, and off-centre Euler buckling. (Including the load spike when the spring has collapsed completely.)
With the hope of finding and answer to the question(s) what is the lightest weight and thinnest comfortable mattress?
Another question I have is: Is there a … ( um, lost train of thought)
Tatami top and bottom with a foam filling.
Self-inflating queen sized mattress.
mollwollfumble said:
The displacements look a bit on the big side for a mattress.
The Rev Dodgson said:
mollwollfumble said:
The displacements look a bit on the big side for a mattress.
Ah yes, this is a non-linearly elastic buckling truss.
Hurt my hip.
—-
You need a hip hole. Use circular or reciprocating saw, or jackhammer as necessary.
Ian said:
Hurt my hip.—-
You need a hip hole. Use circular or reciprocating saw, or jackhammer as necessary.
In floor?
mollwollfumble said:
Ian said:
Hurt my hip.—-
You need a hip hole. Use circular or reciprocating saw, or jackhammer as necessary.
In floor?
As you say in floor.. same technique as camping rough.
Spose you could trim up the offending hip.
Ian said:
mollwollfumble said:
Ian said:
Hurt my hip.—-
You need a hip hole. Use circular or reciprocating saw, or jackhammer as necessary.
In floor?
As you say in floor.. same technique as camping rough.
Spose you could trim up the offending hip.
I could dig a hole in floor, it’s not out of the question, I just wasn’t expecting that as an alternative.
I just wrote a simple finite element analysis for cantilever with a point load at end, set at a given angle from vertical. Fairly obviously, 90 degrees is a standard horizontal cantilever and 0 degrees would be a vertical column.
Cantilever length = 1 (so these are large deflections). Load normalised so a vertical load of 0.01 load units on a horizontal cantilever generates a deflection of 0.01 times the cantilever length.
For an ideal mattress, the load deflection curve should be what?
‘scuse me for asking…but…
why are you sleeping on the floor?
anyway
I’m a Princess & the Pea type of person
..and a Goldilocks, as well I guess.
But the short answer is;
After a lifetime of “mattress testing”.
The best sleep I’ve gotten in my life is on
High Density (5.5) Memory Foam
I had a traditional BoxSpring & Mattress
that was so hard it was leaving bruises,
and not much money, so I “settled” for a
10c MEMORY FOAM MATTRESS TOPPER
10 years on, and I still say “AH!” every
single time I lay myself down.
Do some research, on various weights
(densities) & thicknesses of Memory Foam
5.5 density is somewhat difficult to find,
but if you’re sleeping on the floor for support,
a 10c or 14c Mattress Topper which conforms
to all your curves can make a world of difference,
https://www.sleepadvisor.org/memory-foam-density-guide/
https://www.sleepadvisor.org/best-mattress-topper/
Ogmog said:
‘scuse me for asking…but…
why are you sleeping on the floor?anyway
I’m a Princess & the Pea type of person
..and a Goldilocks, as well I guess.
But the short answer is;
After a lifetime of “mattress testing”.The best sleep I’ve gotten in my life is on
High Density (5.5) Memory Foam
I had a traditional BoxSpring & Mattress
that was so hard it was leaving bruises,
and not much money, so I “settled” for a
10c MEMORY FOAM MATTRESS TOPPER
10 years on, and I still say “AH!” every
single time I lay myself down.Do some research, on various weights
(densities) & thicknesses of Memory Foam
5.5 density is somewhat difficult to find,
but if you’re sleeping on the floor for support,
a 10c or 14c Mattress Topper which conforms
to all your curves can make a world of difference,
https://www.sleepadvisor.org/memory-foam-density-guide/https://www.sleepadvisor.org/best-mattress-topper/
Was sleeping on the floor because Missy used to when she was homeless, and I’ve seen other homeless people do it too. I wanted to find out what it was like. It was an experience not too pleasant. I’ll try something else next time I’m camping.
By the way, I wonder if zoo animals have the same problem. Mountain Gorillas normally make a new bed for themself each night, but that wouldn’t be possible in a zoo. What about other heavy animals in zoos, could they benefit from mattresses as well? Perhaps a Goldilocks test for zoo animals, give them a choice of mattresses and see which they prefer.
I just realised that self-inflating mattresses don’t have to be expensive. This link https://www.kmart.com.au/product/single-self-inflating-mattress/1682303 has a self-inflating mattress at $19, a sleeping bag base camper for $12, and a thermal eva foam bed roll for $10. I tried a thin foam bed roll very many years ago and wasn’t overly impressed.
It didn’t occur to me that different memory foam densities existed.
> https://www.sleepadvisor.org/best-mattress-topper/
“Pure Green 100% Natural Latex Mattress Topper – Soft – 2 Inch thick”. Weighs 11 kg queen size, which translates to 4.0 lbs/cubic ft. Also available and medium and hard – $129.
“Lucid 3-Inch Gel Foam”. Memory foam. $78. The equivalent 2-inch is $70.
> https://www.sleepadvisor.org/memory-foam-density-guide/
“There are upwards of 100 brands selling memory foam mattresses online with different densities, and they’re all offering different features. The only thing they seem to have in common is the promise of the best night of sleep of your life. But they can’t all be right, can they?” Yike!
“1.5 to 8 pounds per cubic foot”. Big range.
“Does high-density foam mean it’s a firm mattress?
Even though high-density ratings are often associated with firmer surfaces, that’s not the only variable that affects how a mattress feels. Another important number to look at is the indentation load deflection (ILD). This number indicates how much force is required to put a one-inch dent in the material. It’s tested with a giant machine that presses down a piece of foam and tracks the power exerted. The higher the ILD number, the firmer the bed.”
“What thickness and density level is best for mattress toppers? The answer to this question depends on the reason you’re buying a mattress topper. If your bed is too firm, and you’re looking for a way to soften it, then a 2 to 3-inch thick topper with a low to medium density will provide the most amount of comfort.”
“What density level is good for side sleepers? Side sleepers tend to need a softer mattress that contours well to the body’s curves. The reason is that when people sleep on their side, the weight of their shoulders and hips presses deeply into the surface. A typical recommended density is approximately 4.0.”
So I need to look more closely at ILD.
https://www.latexmattress.org/latex-faq/latex-firmness-ild.php
“ILD, or Impression Load Deflection, is a measure of the firmness of a foam mattress. ILD is measured by pressing a 12-inch round disk into a 4-inch piece of foam until it presses 25% or one inch into the mattress surface. The amount of weight or pressure required to compress the mattress to that extent is the ILD.”
“Botanical latex mattresses have a much quicker recovery time than memory foam. Higher temperatures reduce the ILD of memory foam. Memory foam tends to sleep hot, holding onto your body temperature.”
The “soft” designation corresponds to an ILD rating of 19-21. Density 1 to 3 lb/cu ft.
The ILD rating for the medium range is 24-26. Density 4 to 5 lb/cu ft.
“Medium-firm” foam mattresses fall into a range of 29-31 ILD.
A “firm” foam mattress is so firm that few sleepers will find it truly comfortable, but for some back or stomach sleepers this level of support fits the bill. The ILD on firm mattresses ranges from 34-36. Density 6 to 8 lb/cu ft.
For natural latex in metric units. 60 kg/m3 for very soft to 95 kg/m3 for very firm, according to https://savvyrest.com/blog/guide-to-firmness. ILD varies from 12 to 50.
Memory foam recovery time varies from 4 – 6 seconds up to many minutes.
Perhaps it’s time for some physical testing. How does bubble wrap compare, for example.
Best sleeping arrangement I had was a water bed. Took some getting used to particularly for the conjugal act but overall a most relaxing nights rest. Not sure whether these type of beds are still available.
I hated sleeping on a waterbed.
dv said:
I hated sleeping on a waterbed.
+1
mollwollfumble said:
By the way, I wonder if zoo animals have the same problem. Mountain Gorillas normally make a new bed for themself each night, but that wouldn’t be possible in a zoo. What about other heavy animals in zoos, could they benefit from mattresses as well? Perhaps a Goldilocks test for zoo animals, give them a choice of mattresses and see which they prefer.
zoo animals are given browse etc to nest build (like orang utans do) obviously their night quarters are generally made of concrete (to aid in cleaning) but they are given natural materials to do what they do. The rhinos and cats at our zoo are given things like sawdust or wood wool to bunker down in and this is then used for enrichment for other animals, mulch or recycled as much as possible.
Mattresses aren’t a good option because the cost would outweigh any benefit (and I can’t think of a benefit) though I do know that our old lion has a soft fall night quarters which is underrated for winter.
If you can think of a mattress that defeats pressure sores (and more importantly) people are happy to sleep on, you’re onto a fortune. They have air pressure ones but they are horrible to sleep on, probably useful for coma people though.
AwesomeO said:
If you can think of a mattress that defeats pressure sores (and more importantly) people are happy to sleep on, you’re onto a fortune. They have air pressure ones but they are horrible to sleep on, probably useful for coma people though.
The Vitapedic brand work well and are comfortable as far as I have heard from those who have used that style of mattress topper i.e the egg carton style and being a topper they can be used with existing bedding and beds.
monkey skipper said:
AwesomeO said:
If you can think of a mattress that defeats pressure sores (and more importantly) people are happy to sleep on, you’re onto a fortune. They have air pressure ones but they are horrible to sleep on, probably useful for coma people though.
The Vitapedic brand work well and are comfortable as far as I have heard from those who have used that style of mattress topper i.e the egg carton style and being a topper they can be used with existing bedding and beds.
we have had very little success with the ‘roho’ style chair cushions.. I think they would be a horrid bed topper.
+1 for a waterbed. Get one with soft sides and the anti-slosh foam inside and they’re lovely. Very comfortable in winter as you can turn the water temperature up, and you can rol around in nearly any position you like without getting too much pressure anywhere.
Spiny Norman said:
+1 for a waterbed. Get one with soft sides and the anti-slosh foam inside and they’re lovely. Very comfortable in winter as you can turn the water temperature up, and you can rol around in nearly any position you like without getting too much pressure anywhere.
Sounds cosy, I have a coldish bed mattress.
Might look at buying a wool mattress cover.
Spiny Norman said:
+1 for a waterbed. Get one with soft sides and the anti-slosh foam inside and they’re lovely. Very comfortable in winter as you can turn the water temperature up, and you can rol around in nearly any position you like without getting too much pressure anywhere.
Sounds cosy, I have a coldish bed mattress.
Might look at buying a wool mattress cover.
and a wool doona, the current one is polyester or something.
I have a koala mattress and it’s the best mattress I’ve ever slept on.
https://au.koala.com/products/koala-mattress
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
Peak Warming Man said:
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
I hope that need doesn’t arise very often.
Divine Angel said:
I have a koala mattress and it’s the best mattress I’ve ever slept on.https://au.koala.com/products/koala-mattress
how many more koala’s have to die!!!!
My mum has a photo of me aged 3, asleep on a tricycle in the shower. The shower wasn’t on.
Peak Warming Man said:
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
If science could make people float over a mattress like floating magnets, that would be cool.
Should be comfy ?
Arts said:
Divine Angel said:
I have a koala mattress and it’s the best mattress I’ve ever slept on.https://au.koala.com/products/koala-mattress
how many more koala’s have to die!!!!
They’re very comfortable to sleep on. That’s why animals exist, to make our lives more comfortable.
Tau.Neutrino said:
Peak Warming Man said:
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
If science could make people float over a mattress like floating magnets, that would be cool.
Should be comfy ?
Reagan from The Exorcist didn’t look comfy when she hovered over the bed.
Divine Angel said:
Arts said:
Divine Angel said:
I have a koala mattress and it’s the best mattress I’ve ever slept on.https://au.koala.com/products/koala-mattress
how many more koala’s have to die!!!!
They’re very comfortable to sleep on. That’s why animals exist, to make our lives more comfortable.
Cymic’s white rabbit would be good to sleep on.
Tau.Neutrino said:
Peak Warming Man said:
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
If science could make people float over a mattress like floating magnets, that would be cool.
Should be comfy ?
Doesn’t look too comfortable.
https://www.youtube.com/watch?v=A1vyB-O5i6E
Divine Angel said:
Tau.Neutrino said:
Peak Warming Man said:
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
If science could make people float over a mattress like floating magnets, that would be cool.
Should be comfy ?
Reagan from The Exorcist didn’t look comfy when she hovered over the bed.
She vomited everywhere.
sibeen said:
Tau.Neutrino said:
Peak Warming Man said:
It’s not something that I lie awake thinking about.
I can sleep on a barbed wire fence if need be.
If science could make people float over a mattress like floating magnets, that would be cool.
Should be comfy ?
Doesn’t look too comfortable.
https://www.youtube.com/watch?v=A1vyB-O5i6E
I can see myself bumping my head a lot.
Tau.Neutrino said:
sibeen said:
Tau.Neutrino said:If science could make people float over a mattress like floating magnets, that would be cool.
Should be comfy ?
Doesn’t look too comfortable.
https://www.youtube.com/watch?v=A1vyB-O5i6E
I can see myself bumping my head a lot.
if people sleep floated would you even need a mattress?
Arts said:
Tau.Neutrino said:
sibeen said:Doesn’t look too comfortable.
https://www.youtube.com/watch?v=A1vyB-O5i6E
I can see myself bumping my head a lot.
if people sleep floated would you even need a mattress?
Probably not.
It would give floating dreams more meaning.
As long as you woke up properly to get down to use the loo.
It’s 4 degrees at the Redoubt so it will be a sub zero morning but I wont light the fire, I’ll just rug up in bed.
Unlike Bubblecar who is thrashing his fire and going out during the day and pulling wood off old heritage buildings and unbolting park benches.
Arts said:
mollwollfumble said:
By the way, I wonder if zoo animals have the same problem. Mountain Gorillas normally make a new bed for themself each night, but that wouldn’t be possible in a zoo. What about other heavy animals in zoos, could they benefit from mattresses as well? Perhaps a Goldilocks test for zoo animals, give them a choice of mattresses and see which they prefer.zoo animals are given browse etc to nest build (like orang utans do) obviously their night quarters are generally made of concrete (to aid in cleaning) but they are given natural materials to do what they do. The rhinos and cats at our zoo are given things like sawdust or wood wool to bunker down in and this is then used for enrichment for other animals, mulch or recycled as much as possible.
Mattresses aren’t a good option because the cost would outweigh any benefit (and I can’t think of a benefit) though I do know that our old lion has a soft fall night quarters which is underrated for winter.
Interesting. So could we make a good bed on concrete with sawdust or wood wool?
mollwollfumble said:
Arts said:
mollwollfumble said:
By the way, I wonder if zoo animals have the same problem. Mountain Gorillas normally make a new bed for themself each night, but that wouldn’t be possible in a zoo. What about other heavy animals in zoos, could they benefit from mattresses as well? Perhaps a Goldilocks test for zoo animals, give them a choice of mattresses and see which they prefer.zoo animals are given browse etc to nest build (like orang utans do) obviously their night quarters are generally made of concrete (to aid in cleaning) but they are given natural materials to do what they do. The rhinos and cats at our zoo are given things like sawdust or wood wool to bunker down in and this is then used for enrichment for other animals, mulch or recycled as much as possible.
Mattresses aren’t a good option because the cost would outweigh any benefit (and I can’t think of a benefit) though I do know that our old lion has a soft fall night quarters which is underrated for winter.
Interesting. So could we make a good bed on concrete with sawdust or wood wool?
Our bodies are very different to animals, we lay oddly, and have weak necks that ache easily and are not designed to support a heavy head horizontally… this is our downfall.
Arts said:
mollwollfumble said:
Arts said:zoo animals are given browse etc to nest build (like orang utans do) obviously their night quarters are generally made of concrete (to aid in cleaning) but they are given natural materials to do what they do. The rhinos and cats at our zoo are given things like sawdust or wood wool to bunker down in and this is then used for enrichment for other animals, mulch or recycled as much as possible.
Mattresses aren’t a good option because the cost would outweigh any benefit (and I can’t think of a benefit) though I do know that our old lion has a soft fall night quarters which is underrated for winter.
Interesting. So could we make a good bed on concrete with sawdust or wood wool?
Our bodies are very different to animals, we lay oddly, and have weak necks that ache easily and are not designed to support a heavy head horizontally… this is our downfall.
We lay oddly? Have you seen my dog? She’s put a contortionist to shame with some of the positions she decides to fall asleep in.
sibeen said:
Arts said:
mollwollfumble said:Interesting. So could we make a good bed on concrete with sawdust or wood wool?
Our bodies are very different to animals, we lay oddly, and have weak necks that ache easily and are not designed to support a heavy head horizontally… this is our downfall.
We lay oddly? Have you seen my dog? She’s put a contortionist to shame with some of the positions she decides to fall asleep in.
Yes. No. Dogs are well used to horizontal neck holding, much more comfortable for a dog to lay with their head in their paws.
Arts said:
sibeen said:
Arts said:Our bodies are very different to animals, we lay oddly, and have weak necks that ache easily and are not designed to support a heavy head horizontally… this is our downfall.
We lay oddly? Have you seen my dog? She’s put a contortionist to shame with some of the positions she decides to fall asleep in.
Yes. No. Dogs are well used to horizontal neck holding, much more comfortable for a dog to lay with their head in their paws.
So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Witty Rejoinder said:
Arts said:
sibeen said:We lay oddly? Have you seen my dog? She’s put a contortionist to shame with some of the positions she decides to fall asleep in.
Yes. No. Dogs are well used to horizontal neck holding, much more comfortable for a dog to lay with their head in their paws.
So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
Arts said:
Witty Rejoinder said:
Arts said:Yes. No. Dogs are well used to horizontal neck holding, much more comfortable for a dog to lay with their head in their paws.
So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
*our. Not ‘out’
Arts said:
Arts said:
Witty Rejoinder said:So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
*our. Not ‘out’
Christ, and you end up with HDs. The state of the modern education, if you ask me.
big part of bed (mattresses) is elevation away from cold floor, temperature changes, + insulation to that end.
so the attributes of elasticity etc aren’t completely separable given the same material insulates.
transition said:
big part of bed (mattresses) is elevation away from cold floor, temperature changes, + insulation to that end.so the attributes of elasticity etc aren’t completely separable given the same material insulates.
Japanese have seemed to manage with a futon style arrangement for many a year.
Arts said:
mollwollfumble said:
Arts said:zoo animals are given browse etc to nest build (like orang utans do) obviously their night quarters are generally made of concrete (to aid in cleaning) but they are given natural materials to do what they do. The rhinos and cats at our zoo are given things like sawdust or wood wool to bunker down in and this is then used for enrichment for other animals, mulch or recycled as much as possible.
Mattresses aren’t a good option because the cost would outweigh any benefit (and I can’t think of a benefit) though I do know that our old lion has a soft fall night quarters which is underrated for winter.
Interesting. So could we make a good bed on concrete with sawdust or wood wool?
Our bodies are very different to animals, we lay oddly, and have weak necks that ache easily and are not designed to support a heavy head horizontally… this is our downfall.
sibeen said:
transition said:
big part of bed (mattresses) is elevation away from cold floor, temperature changes, + insulation to that end.so the attributes of elasticity etc aren’t completely separable given the same material insulates.
Japanese have seemed to manage with a futon style arrangement for many a year.
same point applies, the comforts of softness and insulation aren’t entirely separable
PermeateFree said:
Arts said:
mollwollfumble said:Interesting. So could we make a good bed on concrete with sawdust or wood wool?
Our bodies are very different to animals, we lay oddly, and have weak necks that ache easily and are not designed to support a heavy head horizontally… this is our downfall.
I’d look really bad in that teeshirt.
transition said:
sibeen said:
transition said:
big part of bed (mattresses) is elevation away from cold floor, temperature changes, + insulation to that end.so the attributes of elasticity etc aren’t completely separable given the same material insulates.
Japanese have seemed to manage with a futon style arrangement for many a year.
same point applies, the comforts of softness and insulation aren’t entirely separable
like you’ve laid on a cool concrete floor on a 40+C day, it sounds daft but the same idea’s in there, the solid floor is a great heatsink. I wouldn’t recommend doing a full night on concrete, but a nap could be quite nice.
transition said:
transition said:
sibeen said:Japanese have seemed to manage with a futon style arrangement for many a year.
same point applies, the comforts of softness and insulation aren’t entirely separable
like you’ve laid on a cool concrete floor on a 40+C day, it sounds daft but the same idea’s in there, the solid floor is a great heatsink. I wouldn’t recommend doing a full night on concrete, but a nap could be quite nice.
Missy has told me that concrete is beautifully warm, making it a better floor for a nights sleep than almost anything else, not as good as carpet but heaps better than timber. It retains the days warmth for use at night.
Arts said:
Witty Rejoinder said:
Arts said:Yes. No. Dogs are well used to horizontal neck holding, much more comfortable for a dog to lay with their head in their paws.
So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
Perhaps because we came down from the trees. Orangs, gorillas and chimps may have the same problem on the ground.
Arts said:
Witty Rejoinder said:
Arts said:Yes. No. Dogs are well used to horizontal neck holding, much more comfortable for a dog to lay with their head in their paws.
So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
Makes me wonder how humans coped before inner spring mattresses and tatami mats were invented.
What do native peoples around the world sleep on?
https://bedsrus.com.au/different-types-of-innerspring-mattresses/
mollwollfumble said:
Arts said:
Witty Rejoinder said:So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
Makes me wonder how humans coped before inner spring mattresses and tatami mats were invented.
What do native peoples around the world sleep on?
https://bedsrus.com.au/different-types-of-innerspring-mattresses/
I have a friend who married a girl from China. They came to visit with her parents from China and I offered them beds. Her parents preferred to sleep on the floor whhich was concrete with a carpet on it. Traditionally back in China they slept on boards.
mollwollfumble said:
Arts said:
Witty Rejoinder said:So you are saying that when we fall asleep sitting up on the tram we are doing as nature intended?
Not at all… I mean if nature intended us to sleep sitting up, or standing, we would be able to do that (like giraffe or horses). I’m saying that flat surfaces even with wood wool, straw or sawdust are not ideal surfaces for humans to sleep on.. we need a surface that compresses with out weird body shape, and adequate head support.
Perhaps because we came down from the trees. Orangs, gorillas and chimps may have the same problem on the ground.
Orange build nests in trees. And are mostly arboreal. The others are again different morphologically. But I think it’s less about being able to sleep and more about quality of sleep. Also animals generally nap many times throughout the day. Where we tend to do a long sustained sleep which would make a difference too
There is so much to learn!
“Traditional” fillings include: https://www.padghamupholstery.com.au/store/page-1/general-supplies/fillings-wadding
Coconut fibre
Feather and foam mix
Flock
Lofted cotton wadding
Dacron sheet
Polyester fibre fill
Aboriginal people sometimes used paperbark as bedding. Their dwellings had earth floors.
I’m not sure whether they slept on their possum-skin rugs, but I don’t see why not.
Miners humpies in Australia sometimes had a hessian stretcher.
I also ran across the traditional Indian Charpoy. Originally said to be elastic and comfortable enough to slept on without covering, nowdays combined with a foam topper, or discarded entirely (even in the slums).
Foams come in all sorts of densities and thicknesses, I have a 6 mm EVA which is not comfortable on its own. Standard EVA seems to be about 10 mm now, but also isn’t recommended on its own.
Modern swags come with a foam mattress.
I was going to do some testing on my own, plotting load/deflection curves for mattresses, but now I don’t even know where to start. At a bed shop, at a foam shop, at Kmart, at a camping store?
I did a bit of preliminary testing at home using a barbell weight, but came to the conclusion that it’s better to use a calibrated fist to measure load vs deflection. Calibration is by applying muscle load to a fist while sitting it on a set of bathroom scales.
Comparing the cheapest king single mattresses on Ebay.
$38.45 Air mattress 23 cm thick.
$70 from Fantastic furniture. Pocket springs.
$89 Sleep Master brand. 20 cm thick with springs “Mattress in a box”.
$100 Self inflating camping mattress.
$102 Giselle Bedding brand. 13 cm thick. Medium firm. Linked spring.
$106 (just like the $89 above). New Luxury brand.
These are cheaper than the Aldi “mattress in a box” available in Single ($149), Double ($199), Queen ($249) and King ($299).
The Aldi mattresses get the tick of approval from Choice.
What were the prices again from Kmart?
$16 Air bed, double.
$19 Self-inflating mattress, single.
roughbarked said:
I have a friend who married a girl from China. They came to visit with her parents from China and I offered them beds. Her parents preferred to sleep on the floor whhich was concrete with a carpet on it. Traditionally back in China they slept on boards.
That sed: I slept on a traditional bed spring & mattress as a child,
A boxspring & coil mattress as a teen, on the floor as a hippy.
On some arthritic lady’s Firm Sponge Rubber Mattress, < < <
On a fibre/waterbed as an adult (Not much support there)
Finally, my currant BOX Spring & COIL Mattress (The set that causes bruises)
T’was in fond memory of that Medical Quality Sponge Rubber mattress that sent
me searching for a Mattress Topper solution, and lucked upon the Gel-Infused
Foam that’s become the miracle of the modern era in overall comfort.
I still contend that it wasn’t until I popped for the Memory Foam TOPPER
that I’ve been sleeping on for the past 10 years that I’ve been comfortable.
I’m a Side Sleeper, it beats the heck outta’ sawing a hole in the floorboards!
the wonder of Memory Foam is that it “Gives” under pressure yet bounces
back to fill in gaps, so it cups my hips & shoulders, yet supports my midsection
I’ve also camped out enough to have used hammocks, 3cm neoprene mats
(Good enough to keep acorns & roots from digging into your ribs) and
various thicknesses of blow-up & self inflating air mattresses, even an
expensive AERO Bed w/attached electric air pump used as a guest bed.
I reiterate, The $200 10cm 5.5 density memory foam mattress topper tops ‘em all.
I admit, I got lucky in that I bought the memory foam from a dealer who was
a pioneer in the field way before the technology took off once people started
Trying (AND BUYING) this wonder material and the Big Mattress Dealers
inflated the prices WAY Out of All Reason.
..anyway… just trying to help by lending my 2 cents – - – HAPPY HUNTING
Ogmog said:
roughbarked said:I have a friend who married a girl from China. They came to visit with her parents from China and I offered them beds. Her parents preferred to sleep on the floor whhich was concrete with a carpet on it. Traditionally back in China they slept on boards.
My fiance’s Granny had been a missionary in China and raised her own kids
to sleep on mattresses made of compressed straw on a raised platform.
When we visited his folks in Chicago, I got to sleep on such a set-up.
I was in my 20’s back then, and had no problem sleeping.That sed: I slept on a traditional bed spring & mattress as a child,
A boxspring & coil mattress as a teen, on the floor as a hippy.
On some arthritic lady’s Firm Sponge Rubber Mattress, < < <
On a fibre/waterbed as an adult (Not much support there)
Finally, my currant BOX Spring & COIL Mattress (The set that causes bruises)T’was in fond memory of that Medical Quality Sponge Rubber mattress that sent
me searching for a Mattress Topper solution, and lucked upon the Gel-Infused
Foam that’s become the miracle of the modern era in overall comfort.I still contend that it wasn’t until I popped for the Memory Foam TOPPER
that I’ve been sleeping on for the past 10 years that I’ve been comfortable.I’m a Side Sleeper, it beats the heck outta’ sawing a hole in the floorboards!
the wonder of Memory Foam is that it “Gives” under pressure yet bounces
back to fill in gaps, so it cups my hips & shoulders, yet supports my midsectionI’ve also camped out enough to have used hammocks, 3cm neoprene mats
(Good enough to keep acorns & roots from digging into your ribs) and
various thicknesses of blow-up & self inflating air mattresses, even an
expensive AERO Bed w/attached electric air pump used as a guest bed.I reiterate, The $200 10cm 5.5 density memory foam mattress topper tops ‘em all.
I admit, I got lucky in that I bought the memory foam from a dealer who was
a pioneer in the field way before the technology took off once people started
Trying (AND BUYING) this wonder material and the Big Mattress Dealers
inflated the prices WAY Out of All Reason...anyway… just trying to help by lending my 2 cents – - – HAPPY HUNTING
> The $200 10cm 5.5 density memory foam mattress topper tops ‘em all.
Noted. Would it work straight on the floor? 10 cm looks to me like a good thickness.
I’m a side sleeper, too. I found with the sciatica that i couldn’t turn over in bed at all! So have developer a cycle of legs out legs in legs out legs in. Now i’m back to multiple positions, both sides and front.
Re the Cinese parents. A person who had been trapped in Gulf country during the wet season, sleeping rough for months and given up as dead, was put straight into the Sebel Town House in Sydney, a swank place if ever there was one, and slept well on the floor.
mollwollfumble said:
Ogmog said:..anyway… just trying to help by lending my 2 cents – - – HAPPY HUNTING
> The $200 10cm 5.5 density memory foam mattress topper tops ‘em all.
Noted. Would it work straight on the floor? 10 cm looks to me like a good thickness.
I’m a side sleeper, too. I found with the sciatica that i couldn’t turn over in bed at all! So have developer a cycle of legs out legs in legs out legs in. Now i’m back to multiple positions, both sides and front.
Re the Cinese parents. A person who had been trapped in Gulf country during the wet season, sleeping rough for months and given up as dead, was put straight into the Sebel Town House in Sydney, a swank place if ever there was one, and slept well on the floor.
It’s dastardly I know, but I’m known to SHOP On AMAZON, then BUY On E-Bay.
My suggestion is if you’re going to be sleeping on your own floor & for an extended
length of time, is buy an inexpensive mattress with fair support, & a Mattress Topper
for the ultimate comfort factor.
See if you can locate a similar seller in your location:
Foam N More Upholstery Inc
https://www.ebay.com/str/foamnmoreupholsteryinc
Ogmog said:
mollwollfumble said:
Ogmog said:..anyway… just trying to help by lending my 2 cents – - – HAPPY HUNTING
> The $200 10cm 5.5 density memory foam mattress topper tops ‘em all.
Noted. Would it work straight on the floor? 10 cm looks to me like a good thickness.
I’m a side sleeper, too. I found with the sciatica that i couldn’t turn over in bed at all! So have developer a cycle of legs out legs in legs out legs in. Now i’m back to multiple positions, both sides and front.
Re the Cinese parents. A person who had been trapped in Gulf country during the wet season, sleeping rough for months and given up as dead, was put straight into the Sebel Town House in Sydney, a swank place if ever there was one, and slept well on the floor.
the density and loft of memory foam depends upon your weight.
At 90 kilos with a 10c.thickness you might feel the floor through the memory foam
my 130k brother just sank through the foam and was lying on the bruisey mattress
surrounded by the topper kind of like dropping a plump mouse into whipped cream.It’s dastardly I know, but I’m known to SHOP On AMAZON, then BUY On E-Bay.
My suggestion is if you’re going to be sleeping on your own floor & for an extended
length of time, is buy an inexpensive mattress with fair support, & a Mattress Topper
for the ultimate comfort factor.See if you can locate a similar seller in your location:
Foam N More Upholstery Inc
https://www.ebay.com/str/foamnmoreupholsteryinc
> the density and loft of memory foam depends upon your weight.
At 90 kilos with a 10c.thickness you might feel the floor through the memory foam
my 130k brother just sank through the foam and was lying on the bruisey mattress
surrounded by the topper kind of like dropping a plump mouse into whipped cream.
I’m 105 kg.
“Kind of like dropping a plump mouse into whipped cream”.
Screams with laughter, i can imagine it. I used to have a stress ball made out of memory foam so i know what it can feel like if overcompressed.
I see what you mean by seller in your location, i love that foam sample pack but not at $15 plus $75 postage.
I have a local Clark rubber that sells memory foam cut to size. I don’t think i can pick up samples to try out. https://www.clarkrubber.com.au/foam-and-bedding
It’s a cool 17.0°C and 75% RH. There was light rain a few minutes ago and the sky is not lightening, so I imagine it’s overcast…
Michael V said:
It’s a cool 17.0°C and 75% RH. There was light rain a few minutes ago and the sky is not lightening, so I imagine it’s overcast…
Whoops. Sorry. Wrong thread.
mollwollfumble said:
Ogmog said:
mollwollfumble said:> The $200 10cm 5.5 density memory foam mattress topper tops ‘em all.
Noted. Would it work straight on the floor? 10 cm looks to me like a good thickness.
I’m a side sleeper, too. I found with the sciatica that i couldn’t turn over in bed at all! So have developer a cycle of legs out legs in legs out legs in. Now i’m back to multiple positions, both sides and front.
Re the Cinese parents. A person who had been trapped in Gulf country during the wet season, sleeping rough for months and given up as dead, was put straight into the Sebel Town House in Sydney, a swank place if ever there was one, and slept well on the floor.
the density and loft of memory foam depends upon your weight.
At 90 kilos with a 10c.thickness you might feel the floor through the memory foam
my 130k brother just sank through the foam and was lying on the bruisey mattress
surrounded by the topper kind of like dropping a plump mouse into whipped cream.It’s dastardly I know, but I’m known to SHOP On AMAZON, then BUY On E-Bay.
My suggestion is if you’re going to be sleeping on your own floor & for an extended
length of time, is buy an inexpensive mattress with fair support, & a Mattress Topper
for the ultimate comfort factor.See if you can locate a similar seller in your location:
Foam N More Upholstery Inc
https://www.ebay.com/str/foamnmoreupholsteryinc
> the density and loft of memory foam depends upon your weight.
At 90 kilos with a 10c.thickness you might feel the floor through the memory foam
my 130k brother just sank through the foam and was lying on the bruisey mattress
surrounded by the topper kind of like dropping a plump mouse into whipped cream.I’m 105 kg.
“Kind of like dropping a plump mouse into whipped cream”.
Screams with laughter, i can imagine it. I used to have a stress ball made out of memory foam so i know what it can feel like if overcompressed.
I see what you mean by seller in your location, i love that foam sample pack but not at $15 plus $75 postage.
I have a local Clark rubber that sells memory foam cut to size. I don’t think i can pick up samples to try out. https://www.clarkrubber.com.au/foam-and-bedding
I got samples of foam from Clark rubber, at $2 for each sample.