The Sera Perfect Sleeper Future Firm Super Pillow Top Mattress combines support, pressure relief and cooling elements to give you an incredibly comfortable mattress . Embrace the support and motion separation of the Individually Wrapped Coils. The exclusive HexCloud™ Gel Foam provides pressure relief while it relieves pain. Feel the coolness of the CoolFeel™ Fabric cover as you settle into bed. Additional cushioning from layers of Serta® PillowSoft™ Foam, Serta® PillowSoft™ Gel Foam and Serta® Support Gel Foam, for firmness, adds to the comfort. This Firm Super Pillow Top mattress is ideal for a back sleeper.