Still under warranty and will not help us replace our mattress that has a two and a half inch sagging on each side where we sleep worst mattress and worst experience I have ever had in my life trying to get help to get a replacement mattress because it's still under warranty. Will never recommend having a sterns and Foster again they are the worst!!!! Worst experience that I've ever had in my life trying to get help to replace the mattress that is under warranty!