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We all know the issues of heat from latex (rubber) and memory foam (way too hot). But the solutions by some are adding wool toppers. For me I tried wool toppers (2 different ones) and they may make it somewhat cooler but they made the mattress too hard and impossible for me to sleep on. Then I tried cotton and that helps some, but still makes the mattress firmer. So what is the solution???? I am sick of waking up every few hours and turning over to cool the overheated area. I need to sink in some to have pressure relief for side sleeping, so I sleep even warmer because of that. This message was modified Oct 1, 2010 by Leo3
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requin wrote: Leo, last night I threw down a cotton mattelasse bed cover on top of my wool topper (and over the fitted sheet). Thought maybe one more layer of cotton might do the trick in a pinch.
I did not sleep hot last night for the first time in ages BUT..I think it had a lot more to do with the fact that it was quite cool last night..the fan was in the window (as usual) and was blowing in fresh cool air. The room was in the low 60s. I was therefore able to sleep with an extra blanket and I really like the added weight..I sleep better but of course that usually adds to the hotness. But I didn't get hot under there nor did I have to move off any hot spots under my body. I had found a post in this forum from someone, I forget who, who said he discovered the answer to his hotness on latex was the room temperature. He said when the room was cool, he did not get hot sleeping, when the room was not cool, he did. I am really beginning to think he has hit the nail on the head with that one. I don't have a/c and unless it's very cool out (like last night) it gets warm in my room (and of course, downright hot on hot days/nights). The fan only blows hot air around. I tend to hate a/c (canned air) but I really think I need to get one especially if it means I can sleep at night. (Won't need it now that colder weather is upon us but in the spring/summer). I don't like the idea of higher electric bills, etc. But I wasn't hot last night and that in itself is a minor miracle...and I really do not think it was the mattelasse bed cover doing it. Still have to experiment w/ this. Leo, do you have a/c in your room and/or, what temp. is your room generally at night? Do you find if it's very cool that you don't get hot spots? My night wasn't perfect, my neck was uncomfortable all night (pillow issues!), I woke a lot I think almost in anticipation of being hot..and wasn't..!! ...but then started thinking too much, lol..you know the drilll.. Yes, room temperature will make a big difference. Also, Budgy in the past has said that a silk filled comforter adds weight but not as much heat (vs. say down, wool filled, or a heavy blanket). I don't use any A/C but I live near the ocean. So, normally not too hot in my room except a few nights during the year. I prefer 70 degrees or less. |
| sandman that costco wool-filled topper looks nice and isn't too expensive either..but I too would be concerned about the "breathable" waterproof barrier. My experience is that they aren't as breathable as they claim, on these things. |
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requin wrote: sandman that costco wool-filled topper looks nice and isn't too expensive either..but I too would be concerned about the "breathable" waterproof barrier. My experience is that they aren't as breathable as they claim, on these things. Agreed. They say breathable barrier, but who knows what it is. The price is good and returnable too, so might be worth a gamble for someone to try. |
| If you want to help reduce some heat build up and humidity directly underneath you, you could try to replace your cotton fitted sheet with one made of linen (flax). Although finding good ones is not going to be cheap. Just another tool you can have in your arsenal. |
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thanks budgy. In fact I saw flax linen mentioned here previously (probably by you) so I looked them up. Yowsa expensive..although someone on ebya is selling the european style (flat, not fitted) for about $30...I wonder about the quality though. Something to keep in mind for sure. |
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Back in the early 1970's the Federal Government required all mattress manufacturers to develop and make mattresses that would resist the combustion of a smoldering cigarette dropped on a mattress. The mattress industry found that putting a layer or two of poly-urethane would not allow the cigarette to keep enough heat on the "lit" end to keep burning the tobacco, so the mattress would not catch on fire and the government was happy. Most latex mattress makers use a layer or two of poly foam to help in the cooling of latex as well. The memory foam mattress makers have tried to use poly foam but it interfears with the comfort that some find so enjoyable about memory foam. If I may, I would suggest a trip to a local upholstery shop and buy a layer of super soft poly foam with a layer of fortrell on top - the fortrell will breath well and the poly will dispert heat from your body - however if your mattress is a memory foam mattress you will loose some of it's comfort. It should have little effect on comfort with a latex mattress. Ofcourse I would suggest you have them sew fabric on the outside to make the entire pad easy to take home and place on your mattress. One more thing to know - the more layers of upholstrey you put on a mattress the more you will find it will tend to feel firmer. this is called stacking - more layers, as they are compressed, tend to get hard, especially if any of the layers above are firmer than those below.
Gunmam4440 This message was modified Oct 2, 2010 by gunman4440
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| that really seems to go against the grain of logic. all forms of foam can sleep somewhat hot, although only a small percentage of people have heat issues with latex mattresses that do NOT contain polyurethane foam. Any form of latex foam is more breathable than any other variety of upholstery foam. the number of people that find 100% latex mattresses hot compared to say memory foam or just regular polyurethane foam is very small. |
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You may think it goes against your logic but that is the reason the mattress makers started using poly foam in the quilting of mattresses in the early 1970's. Before that it was not uncommon to find garnetted cotton, single needle quilted to the top layer of fabric.
Most people do find latex mattresses cooler than visco matts. Visco (Memory Foam) by its design simply retains heat. What we call regular poly by it's design does indeed dispurse heat at normal body temps. I'm not aware of any latex mattress makers that do not place some layers of poly foam (not visco foam) on top of their matts...
Gunman4440 This message was modified Oct 2, 2010 by gunman4440
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I wasn't even trying to refute your statement as to why poly foam was introduced...I was speaking of heat. On the topic of flammability, polyurethane foams without additional chemicals added are incredibly flammable, more so than even cotton batting which was the main upholstery of choice before polyurethane foam was being used extensively. There are MANY manufacturers of high quality latex mattresses that do not use polyurethane foam in some or most or all of their models. -Natura, Flobeds, SavvyRest, SleepTek, Obasan, GreenSleep, Royal Pedic, OrganicPedic, VitalRest, WJ Southard, to name a few...there are many more that I have not listed. |
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I am sorry, Ididn't know we were talking about someone who slept so hot that they could ignite poly! But as I stated before - at body temps - normal body temps poly is used to disperse "body" heat. It will do so up to at least the 700 degree mark, Cigarettes burn at about 700 degrees or more. In fact the old brand of "Pall Mall" was rated at about 760 degrees and was the cig of prefference for the government testing. Today's Flamability testing (Federal 1633 regs) uses, in some cases, with some mattress makers - not all makers - chemicals to block the hight temps that have to be met (1180 degrees for one hour at five different ignition points). However many makers use other fire blocking tecknology such as kevlar and other similar fabric heat blocking and dispersing methods. But I doubt if this poor gentelman is sleep with a body temp of 1180 degrees! So the supper soft poly with a fortrel pad on top of his mattess will serve him quite well!
Gunman4440 |