Serta Perfect Sleeper Leland Gel Memory Foam Mattress (Full) New Perfect Sleeper Leland Gel Memory Foam Mattress - 9" Mattress Height - Medium Comfort Level Helps reduce tossing and turning with Cool Action Gel Memory Foam - Encourages proper back support and alignment with the Comfort Last Foam Core - Promotes a balanced sleep temperature with Cool Balance Technology Minimizes impact from partner movement with our TrueSense motion-isolation design - Resists sagging and edge roll-off with Sertas Ultimate Edge Foam Encasement The Leland mattress features an extra layer of Sertas Cool Action Gel Memory Foam, the worlds first premium memory foam infused with the support and cooling touch of Sertas MicroSupport gel  now available for the first time in Perfect Sleeper. It is designed with a unique set of features to help solve 5 common sleep problems: Call 800-996-4340 for more information - 10 Year Manufacture Warranty - Made in the U.S.A - Mattress Only option to add box spring After Purchase