Serta Thermagel 3" Cooling Memory Foam Mattress Topper, King

COOLING GEL: THERMAGEL particles help provide a cool, comfortable sleep surface PRESSURE RELIEF: Features pressure-relieving memory foam for an enhanced feel and a better night’s sleep CONFORMING COMFORT: Adjusts and conforms to the individual contours of the body, adding comfort and support for all sleeping positions - side, back, and stomach IMPROVED AIRFLOW: Made with open cell memory foam to increase breathability while also providing superior heat dissipation MATTRESS REJUVENATION: Helps extend the life of your mattress CertiPUR-US CERTIFIED - Memory foam meets all requirements to be CertiPUR-US-certified for content, emissions, and durability PRODUCT DIMENSIONS: 75"W x 79"L x 3" H