I was a little nervous about buying a mattress sight unseen with a "no return if opened" policy. I still think this policy is wrong, giving people no recourse if they are unhappy. However, I am overall very happy with the mattress. It is very firm, which I like, but is not in the description. I would only recommend it to someone who likes a very firm mattress. It comes vacuum packed and rolled, but fills out to its' full size and shape within a minute or so of opening. I've been sleeping very well on it so far, which has been about 3 weeks.