I had a back op some time ago, had a disk removed. Hated life ever since, hard to get to sleep in pain, waking up stiff and in pain, walking, standing, sitting, everything is pain.The mattress took a week (maybe two weeks) to get used to, but now I sleep, and wake up in the morning feeling ready for the pain of walking, standing and sitting. Nothing will ever remove the pain from my life, but at least my sleeping is now much better. Any relief is welcome.