We bought this for our new sofa bed that came with a terrible mattress. We let it air out for a day before we used it. The queen size fits perfectly and it is so comfortable. It is a night and day difference the original and the new mattress. On top of this Great Offer Stock shipped it our our condo on Molokai which not all online suppliers are willing to do. We appreciate it. We recommend this mattress for you sofa sleeper.