memory foam layer over latex layer

[phoenix]

Hi beth620,

I wasn’t clear enough in my question about fast-responding memory foam. It seems to be to be less dense, is that just the few I’ve experienced? Are there some that are not less dense, and so not lower quality? Since I like it, I’d like to find a fast-responding memory foam that is good quality. Am I out of luck?

There is more about the different properties of memory foam that can be changed with different foam chemistry (regardless of density) in post #9 here and in post #8 here but in very general terms lower density memory foam tends to respond more quickly and be less temperature sensitive than higher density memory foam.

The new topper is 2" gel memory foam that was quite soft until it got colder, and now is rather firm. The extra foam under it is 2 layers of 1/2" cheap green foam from a fabric store. The layers are tapered, with 2 only in the deepest part of the dip I’m filling. I don’t feel it below the topper as I lay on it.

All memory foam will change (to differing degrees) with changes in temperature, humidity, and the length of time it is compressed (memory foam gets softer when it is compressed for longer periods of time regardless of temperature). With memory foam it’s usually a good idea to keep the bedroom at a consistent temperature (some more than others). Of course lower density memory foam will soften much more quickly than higher density memory foams in the areas that are compressed the most. If there is a dip or soft spot in a mattress then a topper or something on top of it can still follow the dip (see post #4 here).

Hmm. It’s pretty cheap foam. I’ll remove it and see if anything changes. Another speculation I had was that I’m more comfortable and so staying in the same position much longer than I previously did, before the topper. But the numbness should make me move, right?

It’s possible and hopefully it would … but it would depend on whether the numbness triggered a change in position when you were asleep (in a perfect world it would but this doesn’t mean that it would happen for everyone).

Phoenix