Antimicrobial Fibers Tencel cover AdvantaGel™ iFusion™ Gel Infused Memory Foam Lumbar Layer 2400 No Compromise Reactive Plus Coil System (1022 Perfect Contour Reaction Coil System with an additional 1,386 micro coils) Foam Encasement 10 Year Warranty Foundations available (boxsprings) Height 15" The King Koil Luxury Evening Pillowtop Mattress offers a durable and consistent sleeping surface. Featuring a 2400 No Compromise Reactive Plus Coil System (1022 Perfect Contour Reaction Coil System and an additional 1,386 micro coils) with lumbar supports working together to evenly distribute weight to support your entire body. The coils adjust instantly to your sleep movements, naturally comforting and supporting your body to reduce motion disturbance. The mattress is covered with breathable, moisture wicking Tencel™ fibers which are woven into the sleeping surface for a greater night’s sleep. The iFusion Technology is 12x more breathable than standard memory foam and the Excellent Edge™ Foam Encasement allows for 100% usable sleep surface with a stronger seating edge. The Tencel Cover wicks away moisture and increases the breathability of the top of the mattress. while the AdvantaGel™ Layer of Gel just below the quilt reduces pressure and increases breathability just below the quilt to maximize the pressure relief and breathability for a supportive, cool and comfortable night sleep every night.