We purchased an Icomfort mattress from Rooms To Go with a 10 year warranty, and had their mattress tech come to the house to measure our divot after 9.5 years. They gave us 90% of its original cost toward another one and we went firmer and purchased a high quality side sleeping pillow as well. The new mattress has the same warranty. Only wish the replacements didn’t almost double in cost, but a good night’s sleep requires an investment!