The Sealy 12 in. Hybrid Twin Mattress brings the comfort of Sealy straight to your door, conveniently compressed and packaged for a hassle-free delivery and setup experience. Our unique combination of innovative comfort technologies provides universal support for every unique preference and body type. Premium memory foam conforms and responds to your individual shape with a medium firm feel, while individually wrapped coils allow for airflow and provide a unique core support layer. The coils provide extra support around the mattress edges, letting you move freely and eliminating sinking. With a luxuriously soft circular knit cover, you can feel the true support and comfort benefits of this premium mattress. The Sealy Mattress-in-a-Box was designed to provide outstanding comfort and support, as well as convenience. No delivery appointment needed here - this mattress is conveniently compressed and packaged for an easy delivery and setup experience catered to you. The included 10-year warranty assures the longevity of your mattress. This Sealy mattress is proudly designed and assembled in the USA for quality comfort that lasts.