Sleep Master Gel Infused Memory Foam 10 Inch Celliant Better Sleep Mattress, Twin Cover features the patented Celliant Sleep fiber, which is a specially formulated material designed to enhance oxygen levels in the body Active Response Foam layering system features 3 gel-infused memory foam with 2 Airflow foam for resiliency Only the Highest Quality Foam  Foam is CertiPUR-US Certified for durability, performance, and content Smartly Shipped - Our patented technology allows our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door Worry free 10 year limited warranty