I only wish we had found this mattress years ago. We both have very bad backs. Not make believe. Diagnosed, treated, and chronic.We have used our LuxEstate Pillow Top Firm for 28 days so far.I'm not going to tell you are backs are cured. They never will be. BUT from day one we noticed a difference that only got better as days went by. No other lifestyle changes period. The MOST AMAZING SLEEP SURFACE we have EVER slept on. And we have gone through at least four different mattress "systems" in the past 30+ years. I laid on it on my back the day it was delivered while the sheet set we got as a bonus was being laundered. When my wife walked into the bedroom and caught me exactly what I said to her was "Honey, this mattress KNOWS me.