Hi ddcfri,
There is more about the many variables that can affect durability in post #4 here and the other posts it links to but I would consider the start of a “higher weight” range to be somewhere around the low 200’s range and higher.
This is mostly hype. There certainly are others doing this such as here and here (their site is down at the moment but should come back up fairly soon) for example who are doing it more effectively because they also provide a way for the air to ventilate to the outside). A google search on ventilated memory foam will turn up others as well. There is also more about the different ways that are being used to cool down memory foam in post #6 here.
[quote]Specifications:
Depth: Approximately 13"
1"Soft Eco Memory Foam
2" 7 Pound Eco Memory Foam
3.5" Anantomic Punched Layer
2" High Density Transition Layer Foam
3.5" High Density Base Layer
1" Rebond Base Layer
20-Year Limited Warranty
Again, if it met my PPP otherwise, given my weight and sleeping style, do you see any flaws to this configuration? [/quote]
Unfortunately … the specs don’t include the most important information I would need to make any meaningful comments about the mattress or that you would need to make an informed choice and is missing the density of all the layers except the 7 lb memory foam (the information you need is in this article).
Phoenix