Purchase and delivery were great! We have had this mattress for approx, 6 mo and it has already broken down on one side. The enitre side sags when i sit on it, and I can feel the springs giving way. (By the way, I am not a heavy person) This mattress is very cheaply made. If I wanted a crappy mattress I would have gone to the local discount furniture store and purchased a no name brand for half the price. Apparently the name Serta doesn't carry much weight. The mattress can't be flipped, it is one side up only. I think some of the other comments which say the bed is great didn't wait as long as I did to review the bed. They are most likely having the same issues that we are now. Beware buying this bed!!!!