CF3000 Hybrid Plush: The CF3000 Hybrid mattress pairs advanced cooling technology with a plush feel. The Max Cold™ Cover is cool-to-the-touch, and the UltraCold System™ paired with Carbon Fiber Memory Foam work hard to absorb excess heat from your body and channel it away. At the same time, the 1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement supports every curve of your body, so you sleep comfortably. Max Cold™ Cover: Made from super cool high-performance fibers for an instant cool-to-the-touch sensation. UltraCold System™: This layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably. Carbon Fiber Memory Foam: Every iComfort mattress is made with our exclusive Carbon Fiber Memory Foam. This system channels heat away from your body and provides exceptional strength for back and neck support. 1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement: In this advanced innerspring system, individually wrapped coils work independently to conform to every curve of your body and provide durable support.   Don't forget to check your delivery type and print off your  Delivery Checklist  &  Delivery Guide   Serta Features:   Mattress Type: Hybrid Included: 1 Mattress(es) Features: Cooling, Wrapped Coils, Foam Layer, Cushioning Layer, Cooling Layer Additional Information: Suitable for Adjustable Bed Frames, Eliminates Motion Transfer, Conforms To Body, Relieves Pressure Points Manufacturer Warranty: 10 Year Bed Size: Twin Xl Measurements: 38 Width/Inches, 12.5 Depth/Inches, 79.5 Length/Inches Base Material: 60% Metal, 40% Polyethylene Comfort Type: Plush Care: Spot Clean Certifications And Listings: Cpsc - 16 Cfr 1633 Compliant, Cpsc - 16 Cfr 1632 Compliant Country of Origin: Made in US Includes mattress only. Mattress plus box spring option also available.  This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads This mattress meets the requirements of 16CFR Part 1633 (federal flammability (open flame) standard for mattress sets) when used with foundation