I bought my Stearns and Foster mattress at Mattress Firm. I have always had back problems and was willing to pay whatever was necessary to insure a good night's sleep. I was impressed with the company's warranty and was assured by the sales person that it would be honored if I had any sagging problems. Because I suffer from scoliosis I need the bed to remain firm. Any sagging or "conforming to body indentations" results in pinched nerves and pain. I was assured that this mattress would hold up. After only 3 yrs of use (I am... read full review »