I got a new foam mattress topper and I cut up the old one into shapes that suit me and my aching body. It sounds silly but the thing that helps me the most is my pillow pants! I tied the feet of an old pair of sweatpants, stuffed the pants with pieces of foam and then tied the waist shut. I guess it functions sort of like a pregnancy pillow but this was free. I've got all kinds of odd-shaped pillows now but they all serve a purpose.