I was ready and willing to purchase a box mattress versus going to the store and trying to find a way to get it home, but my hubby wasn’t so keen on the idea. I went ahead and ordered it anyway and laid it out flat for 48 hours. The end that was tucked inside when it was rolled, was only at 6 inches, while the rest was at 9 inches. It was really upsetting considering it’s supposed to be a uniform 10 inches across. We waited another 24 hours but there were no changes. Short of calling them and having to somehow send it back, and leaving my son without a bed, there weren’t many options. It’s not the worst thing in the world, but it is upsetting. In other regards, it’s a fine bed. No chemical smell or anything like that and my son loves it.