This is our second one - we bought a too hard mattress for home and this saved it - then we had to move temporarily for my husband's job and moved into a very nice furnished apartment - but we were there 4 months when I went home for a visit (slept in our bed @home) and realized just how awful the bed at our temp apt was - bought another one of these and I am sleeping great!! You could put this thing on the floor and sleep great! Didn't smell - unrolled it at 3m and put it on bed at 6pm - slept on it that night. Can't say enough - you won't regret this buy! Even my husband who like firm - loves this - I like soft and it is great for us both.