Oh my gosh! I wish I bought this bed years ago. 1/4 the price of other foam mattresses. My husband has major back problems, but since we bought this bed he hasn't woke up in pain once. We put it on our boxspring one night and by the next morning it was ready to be slept on. Hardly any chemical smell at all. I was concerned because of the other reviews. After about an hour out of the plastic, there was no smell at all. 10 inches thick and all my regular bed sheets fit just fine. No slipping off the corners. A mattress is a major purchase. You don't want to be disappointed and have to mail it back. But this mattress is wonderful. Not a cheap knock-off. Quality all the way. We are VERY happy with this purchase.