I bought a Therapedic mattress about 2 1/2 years ago and it has a 20 year non-prorated warranty on it. The mattress has formed a ridge in the middle of the bed and I went to Mattress Overstock in Beaumont, Texas where I bought it and they informed me that the company had went out of business and they could not warranty this mattress. If this is the case I would not recommend this to anyone. It was a wonderful matteress but now it is terrible. If anyone knows where I could get my bed warranty honored I would appreciate it.