Bests & Worsts Reviews from Amazon

i ended up having two different versions of this mattresses to compare and several nights sleeping experience on both this 12-inch version and the 10-inch version by sleep innovations. the only difference was this version has 2.5" of memory foam and 9.5" of regular foam and the 10-inch version has 3" of memory foam and 7" of regular foam. the foams themselves (both the memory foam and the regular foam) are the exact same in the two mattresses. i at first got the 12-inch version cause it was slightly more expensive so i assumed slightly better, and it slept well. but i realized i was using no where near the full 9.5" of regular foam in the base. at most probably more like 2" to 4" inches of it if that (i'm 6'1" 200lbs). i honestly think even if i was the same height and 300lbs i'd bet i'd still only use at most 5-6" of the regular foam (when you are lying down your weight is distributed over the bed). honestly maybe up to 400lbs before i think 7" would be insufficient. so the extra regular foam really makes no difference but i DID feel a difference between the 2.5" of memory foam and the 3" of memory foam and liked the 3" considerably better. plus the 10-inch is cheaper, so go w/ that version. they both sleep nice but that one is the better of the two.