I’ve slept on different types of mattresses growing up, then I settled on a nice firm expensive matress with a pillow top for comfort. I figured a somewhat sore back in the morning was just part of aging. When my wife and I separated, I brought just an antique Chinese wooden “couch” with me. I put two large, thick, heavy goose down cushions end-to-end on the hard surface and wrapped a sheet around them. I never knew a bed could be so comfortable, and I have no more back pain. :-D