Gel Memory Foam Mattress Certipur US Certified Twelve InchesSleep cooler and wake refreshed with a 12 inch Gel Memory Foam Mattress in a Boxdesigned for comfort, support, and effortless setup. This queen size mattress blends cooling technology with body conforming comfort, delivering a serene nights sleep right away. Gel infused memory foam for cooling2 inches of gel memory foam perched on 3 inches of transitional foam work together to regulate temperature and relieve pressure, so you stay comfortable all