Bought this mattress before I had surgery a month ago. I had to stay in the hospital for 3 days and my back was killing me. I am a retired RN and have terrible orthopedic problems in my neck, back, feet, hands, elbows, knees and feet. I have tried the Nautilus, Sleep Number, Latex and other memory foam mattresses (probably at least 7-8). I could never have a comfortable nights sleep and it usually took me 1-3 hours to go to sleep. My husband has orthopedic problems too (replaced joints, bad back and neck). This is the first mattress we have both been able to sleep on together. I wish I had found this 15 years ago. It relieves the pressure and discomfort I usually felt in my shoulders and hips when I would ly on my side. This mattress only has a 10 year warranty (but the store owner and their two adult children have them and said it would last longer). Even if I only got 5 years out of it, I wouldn't object. Not only that I was able to buy it wholesale for $399 for a double size bed. Each size up was $100 more. That is still a cheap mattress. I was told the mattress sells some places for $1200 and yes I did find it selling for that at one source on line. I did find a number of sites that sold the full size for $489 with free shipping. It is worth every penny. In fact, I am going to tell my orthopedic doctors about it. I know they have many patients with orthopedic pain. Happy dreams!