Best one we have had yet. Purchased the 4" king size foam and love it! This is the third Memory Foam purchase we have made from Overstock. The first two were 2" and 3" and great ( still in use on other beds)....but this has the other two beat hands down. It arrived in a timely manner, with no smell and exactly the rigth size. We could not be happier. The 4" makes it a little more difficult for shorties to climb onto the bed...but once you get there you don't want to leave...like floating on a cloud. If anyone is on tge fence about buying this size Memory Foam...don't worry you will love it.