Bought the queen size and after approximately two years started to get a body depression in the middle. I am 280 lb so maybe to be expected? Well, by year three was too bad for two people to sleep on it. We contacted Sleep Country warranty claim service, as we bought it at a local Sleep Country Store. They sent us a link to the website and we filed the appropriate pictures and information. 4 days later we got an email authorizing full replacement cost for a mattress of our choice. So while I feel the mattress may not be the best as far as our experience goes the customer service was excellent. The warranty did exactly what it was set up and said to do.