I purchased a Restonic mattress from a local discount store, "Scratch & Dent". It is only about two months old and already sagging in middle. I thought maybe my body aches were somehow my fault or even my imagination, but after reading some other reviews I see that it is probably the mattress. Thought Restonic was a reputable company and that I was purchasing a top of the line product. My daughter bought a set at the same time. I don't really know what to do and cannot afford new mattresses. Guess I'll just have to live with it. read full review »