Night Therapy Spring 6 Inch Mattress, Twin Features quilted cover, fiber padding, 1 inch Pressure Relieving Comfort Foam, 5 inch Pocketed Springsfor support and minimal motion transfer Only the Highest Quality of 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 High quality, supportive mattress for growing children and young adults