I use a cotton fiber bed pad that is 3 inches thick, plus a 2 inch thick foam pad under it. Both are laid on top of my regular mattress. I buy the twin sized ones although, my mattress is a full size. However, if your married you can buy them in any size. The thick pads can be made of cotton, hemp, feathers, foam. The thicker the better for having a place to rest your painful muscles.