Serta Gel Memory Foam - This unique gel memory foam contours to the body for cushioning comfort and allows airflow to keep you cool and comfortable throughout the night Serta Foam Core - Our new and improved Serta Foam Core provides durable support for any sleep position. With consistent support from edge to edge, you'll be comfortably supported all night long Convenient Mattress In a Box - We've used new compression technology to package your mattress in our smallest carton yet! Easy set up- just unpack, unroll, and unwind! Easy to get up small stairs, through narrow hallways, and doors