Bio PEDIC gel-infused 3 inch memory foam mattress topper - bring new life to your mattress by adding a cool, comfortable, supportive layer. Swirls of cooling blue gel transfer heat away from your body keeping you cool through the night. Three inches of supportive gel memory foam absorb pressure and strain, cradling your body's contours and distributing your body weight , so you can get the restful sleep you deserve. A generous 5-year manufacturer's warranty instills confidence for many years of cooling comfort and support. Spot clean only.