Had one for about 6 months, while I was between places. Had the raised one, Queen sized. Was OK, slept just as good on it as I do my regular bed now. Only problem I had was inside the base of the raised models, there is a series of "walls" that create chambers. One of the "walls" seperated inside and it ended up causing a big bubble on one side of the base. This was near the end of my needing to use the bed, so it wasn't that bad. I think I paid like $200-something when I got mine, and this was 4 years ago.