The Beauty Sleep® 11.5" medium hybrid mattress is designed for your lifestyle. With a smooth top panel, our Beauty Sleep® 11.5" medium hybrid mattress features allcool™ gel foam and allcool™ gel memory foam that contours to your body for the ultimate pressure relief. Our premium foams provide a responsive sleep surface for all-night comfort, support, airflow, and breathability. Plus, firm 815 Original Beautyrest® Pocketed Coils provide consistent, supportive sleep at a value designed for your lifestyle. Medium smooth top hybrid Featuring firm 815 Original Beautyrest® Pocketed Coil Technology for consistent, comfortable support Allcool™ gel memory foam is a premium gel memory foam that contours to your body for the ultimate pressure relief Allcool™ gel foam is a soft gel foam that helps provide comfort, support, airflow and breathability All Beauty Sleep® mattresses are built with CertiPUR-US® Certified foams All Beauty Sleep® mattresses are assembled in the USA All Beauty Sleep® mattresses are compatible with adjustable bases All Beauty Sleep® mattresses have a 10 year limited warranty  Mattress Top Type: Tight Top Mattress Type: Hybrid Included: 1 Mattress(es) Features: Cooling Layer, Cushioning Layer, Full Support, Wrapped Coils, Foam Layer Additional Information: Eliminates Motion Transfer, Suitable for Adjustable Bed Frames, Conforms To Body, Relieves Pressure Points Coil Count: 324 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Measurements: 74.5 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: 11.5" Country of Origin: Made in US Includes mattress only. Mattress plus box spring option also available.