My husband suffers from chronic back pain. He's always had trouble sleeping at night. We heard some good things about memory foam mattress helping sleep more comfortably, but they were a little pricy. Instead, we decided to give a memory foam mattress topper a try, and it turned out to be the best thing we purchased in a long while! We both sleep much better, and he says it does help with his back pain.
I have this topper on my bed as I tend to have back pain when I sleep without one. It's wonderful!