Sleep comfortably throughout the night with the 12" Serta SleepToGo Gel Memory Foam Mattress. his mattress is engineered to improve airflow and release trapped heat to let you sleep cooler. The gel-infused memory foam layer conforms to the contours of your body perfectly with the Air Channel Foam providing breathability and pressure-relieving support. The Serta foam core provides lasting durability and support night after night while helping align your spine and relieve tired muscles and joints.