If I could, I would give this matress zero stars. Took it out for the first time on the weekend, allowed to inflate as per instructions and was left with a matress surrounded by a giant air bubble, the top is not attached to the foam inside, so each time you lie on it, the air shifts and you end up sleeping on the ground. Even worse, when you are sharing with someone, one of you ends up in the air and the other in a sink hole or you roll into each other in the middle. If you want the worst nights sleep ever, buy this mattress. I called to see if this was a fault with the product and perhaps could have it replaced and was told no, this is just how it is. I feel completely mislead and ripped off, especially for the price. I absolutely do not recommend this matress. Get yourself a regular blow up air matress and save yourself the bad sleep and wasted money.