Royal-Pedic has been handcrafting the Royal-Pedic all cotton mattress for over 70 years. It provides excellent orthopedic support and is the mattress chosen by 6 former U.S presidents, including JFK who had back issues. For a plush, yet still, supportive feel adds one of our 3″, 4″, or 5″ pillowtop pads to lay on the surface of the mattress, and you have a synergy combining luxurious surface comfort with great back support. The result is a level of firmness right in the middle - not too hard and not too soft for most people. While this is our most popular mattress in general, it is especially liked by people who have bad backs because the mattress provides buoyant support and gives them the relief they need. Some people with back issues may want it without a pillowtop pad, or they may want to add the Royal-Pedic pillowtop pad, which gives them some extra surface plushness without sacrificing support. The Royal-Pedic all cotton mattress with our Royal-Pedic or royal cloud pillowtop pads is usually the compromise when one partner is bigger and heavier and needs a supportive bed, while the other partner is lighter and wants it plush enough to be comfortable. The double diamond box spring supports the mattress and provides an extra layer of suspension for increased comfort. The center-third of the box spring contains 50% more modules to add extra support where it’s needed the most. 5-star hotel grade wide slatted wood frame provides greater durability.