This memory foam mattress comes very close to being perfect. Only complaint I have is that it has a ribbed/rippled top surface, which was not explained anywhere in the details of the item. I put a mattress pad on the bed, and my guest had no problems. I guess these ribs are to make the mattress cooler or something, but I was put off my them because my memory foam mattress does not have this feature. A rather inexpensive mattress topper we bought a few years ago for another bed was ribbed like this, so perhaps it's one theory of making a memory foam mattress. My guest says the bed is very comfortable and that's the important thing.