Beautyrest BLACK Beautyrest BLACK is more than a mattress, its a haven for deep, restorative sleep that inspires your senses. The Beautyrest BLACK experience goes beyond mere comfort. It creates a restful escape where sleep is the ultimate luxury. Dream in Black Sleep is the Ultimate Luxury Luxury Meets Technology FEATURES: CONFORMING BACK SUPPORT: Our patented Advanced Pocketed Coil Technology works to provide individualized back support, ease of movement, and pressure point relief throughout the night. COMFORT AND PRESSURE RELIEF: Micro Diamond Memory Foam works with our Advanced Pocketed Coil Technology to create our best conforming back support. Micro diamonds in the foam work to conduct heat away from the body to prevent overheating. TEMPERATURE MANAGEMENT: SurfaceCool Plus Fiber, located at the surface of the bed, is designed to dissipate body heat away from the sleeping surface to help keep you comfortable throughout the night. Beautyrest BLACK Features: MATTRESS TOP TYPE: Tight Top MATTRESS TYPE: Innerspring INCLUDED: 1 Mattresses COIL COUNT: 523 Coils Manufacturer Warranty: 10 Year Limited MATTRESS COMPONENTS: Mattress Only BED SIZE: Twin Xl MEASUREMENTS: 38 Width/inches|79.5 Length/inches|13.5 Depth/inches BASE MATERIAL: 100% Steel FABRIC CONTENT: 85% Polyester|14% Polypropylene|1% Spandex COMFORT TYPE: Plush CARE: Spot Clean COUNTRY OF ORIGIN: Made in US