I have spinal stenosis in my back and neck as well as arthritis in back neck hips knees and feet. I have used only memory foam for 13 years for the most comfortable mattress though not perfect for me. This is the most comfortable I have been in probably 30 years and my massage feature on the base I all ready had can be felt much more than the previous memory foam I had. No longer upset with grand daughter for climbing onto my bed when I was cleaning mattress and falling asleep and having an accident on the old mattress.