I guess we didn't realize just how shot the old mattress was until we spent a few nights on the new one. It is amazing. We only made one mistake: when the white glove service guys offered to take it upstairs we should have let them. This is one heavy mattress! We huffed and puffed it upstairs, got it in place and dropped onto the thing. My wife and I agree that we are too old to ever do that again. Advancing age of the occupants aside, the Lux Estate medium is a great night's sleep.