The Aerobed is a waste of money, it only works for a short time before the seams at all the indentations start to get pinhole leaks. There is a clear design flaw in the product, they have made the material thickness too small in this area. It simply doesn't stand up to just using it, even if your careful not to dig a knee or elbow into it. The pinhole leaks can be repaired with crazy glue, (deflate before applying glue) it takes a while to find them though, and after a while you wind up getting a new leak every night regardless. It will drive you mad. If the thing only cost a few bucks it might be acceptable but for the price of the item it should have been designed better.