This is a piece of foam, there is no memory-foam characteristic to it. It lacks the density any legitimate memory-foam. For a queen size matress to only weigh 65lbs is impossible. I shined my bright SpecialOps light from work through the sides of the mattress and it went right through. There is no core/base within the matress, this just a solid cut out of low-grade foam. I am annoyed that I was misled by the item description, rest assured, you will not see any handprint if you press into this mattress as illustrated in the picture. The sleep comfort is medicore, but nothing comparable to the sensation of laying down on the Tempurpedics that I tried out in stores. This is a decent product for $300 dollars cheaper. You do NOT get what you pay for. You will regret this purchase.