We are retired and have slept on everything from waterbeds, hybrids, foam, and all those 'rolled up when delivered' mattresses. Our backs were KILLING us and we were not sleeping soundly. We were too hot at night and we finally decided to go back to the old coil spring mattress & foundation system. We bought our king set from a small furniture dealer in eastern Oregon and had it delivered three days later. All we can say is WOW! We had no idea how long we have been sleeping on junk until we spent our first night on the Posturepedic. This bed will change your life if you are currently uncomfortable when you sleep.