I had the same issue. Years ago I bought a Tempur-Pedic mattress and it was very stiff. I thought that sleeping on it over time would soften it, but it stayed hard and was very hot to lay on in one position. I gave up and put it in the guess room and decided to once again shop by laying on several. The one I picked turned out to be great. It was a Beautyrest Black and on sale, so it turned out to be less than the Tempur-Pedic mattress.