Combining cutting edge memory foam technology with an advanced wrapped coil system, the Kingsdown Kara mattress set utilizes the best of both worlds to provide a supportive, uninterrupted night's sleep. This firm mattress features a thick two inch layer of Chilly Wave™ memory foam, infused with gel beads to draw excess heat away from the body which is then dissipated through vertical ventilation channels. Two additional layers of convoluted and firm memory foams provide a supportive sleep surface that contours to every curve, working together with individually wrapped coils to relieve pressure points and offer a restful sleep experience. Kingsdown Kara Queen Mattress Set20 Year Warranty