ABOUT THE COLLECTION: Beautyrest's most advanced sleep system, featuring Triple-Stranded Pocketed Coil® Technology for maximum individualized support, plus the ultimate in motion separation, pressure relief and temperature management View all mattresses in the Beautyrest Black collection. QUILTING LAYER: Advanced temperature management Sleep Climate™ Technology works at the mattress surface to help transfer heat away from the body. Specialized vertical fibers combine with the surface-cooling technology in an advanced feature to keep you cool all night Materials: 100% polyester cover COMFORT LAYER: A premium memory foam, infused with diamond particles, is designed to help move heat away from the body for a cool sleep. Micro Diamond™ Memory Foam, infused with diamond particles, is designed to help transfer heat away from the body. Materials: polyurethane comfort foam and memory foam SUPPORT DETAILS: Triple-Stranded Pocketed Coil® Technology offers our most advanced level of individualized support and motion separation, so you can rest undisturbed. Edges constructed with Beautyrest edge support. Materials: Triple-Stranded Pocketed Coil® System BOX SPRING: Specifically designed to work together with your Beautyrest Black® mattress, this Beautyrest Black® foundation offers long-lasting support and reduced motion for restful night's sleep Materials: wood frame