Experience the best of Beautyrest®, featuring advanced temperature management technology, premium foams, and advanced, Triple-Stranded Pocketed Coil® Technology for conforming support and motion separation. Micro Diamond™ Memory Foam offers a specialized upgrade for cooling comfort, as the foam, infused with heat-conducting diamond particles, is designed to help move heat away from the body for a cool sleep. With the inclusion of premier materials and advanced sleep technology, the Beautyrest Black® Collection optimally aligns at the intersection of luxury and innovation for an extraordinarily comfortable sleep. For the person who likes medium support with just the right amount of pressure relief and cloud-like top layer Triple-Stranded Pocketed Coil® Technology offers our most advanced level of individualized support and motion separation, so you can rest undisturbed Specialized vertical fibers combine with an applied surface-cooling technology in an advanced feature designed to help transfer heat away from the body all night A layer of specialized foam is quilted into the sleep surface to unlock immediate, advanced pressure relief A premium memory foam, infused with diamond particles, is designed to help move heat away from the body for a cool sleep A unique, channeled design helps this high-density foam promote airflow for cool, enhanced pressure-relief  Mattress Top Type: Pillow Top Mattress Type: Innerspring Included: 1 Mattress(es) Features: Cushioning Layer, Temperature Regulating, Wrapped Coils, Foam Layer, Cooling Layer, Full Support Additional Information: Eliminates Motion Transfer, Relieves Pressure Points, Suitable for Adjustable Bed Frames, Conforms To Body Coil Count: 696 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Xl Measurements: 38 Width/Inches, 16.5 Height/Inches, 79.5 Length/Inches Maximum Weight Limit: 850 Lbs Base Material: 70% Polyurethane, 30% Metal Comfort Type: Medium Care: Spot Clean Certifications And Listings: Certipur-Us Certified Mattress Height: 16.5" Country of Origin: Made in US Includes mattress only. Mattress plus box spring option also available.