Serta Luxe Edition Armisted Plush Euro Top The Armisted Luxe Edition features advanced bedding technology exclusive to Serta. Layers of memory foam compliment the 825 Edition Support® Coil System, maximizing both comfort and support. A combination of cutting-edge memory foams including Serta® PillowSoft® Foam, Cool Twist® Gel Memory Foam, BestEdge® Foam Encasement, and HyperTouch™ Comfort create a unique sleeping experience sure to improve your sleep quality. Features: FreshFeel Fiber FreshFeel Fiber is an FR fiber with moisture-wicking and anti-microbial properties. HyperTouch™ Comfort System HyperTouch™ Comfort System comfortably cradles your body from head to toe for better pressure point relief. PillowSoft® Foam PillowSoft® Foam is an extra-soft foam that gently hugs your body in a comfortable embrace. Cool Twist® Gel Foam Cool Twist® Gel Foam features cooling gel which is swirled directly into a breathable foam designed to promote airflow and heat dissipation. 825 Edition Custom Support® Coil System 825 Edition Custom Support® Coil System with Serta’s advanced BestEdge® Foam Encasement system is designed with an extra-deep foam rail to help reduce edge roll-off and extend the sleep surface. Mattress Top Type: Euro Top Mattress Type: Innerspring Included: 1 Mattress(es) Features: Breathable, Cooling, Foam Layer, Cooling Layer, Cushioning Layer, Wrapped Coils, Adjustable Base Compatible Additional Information: Eliminates Motion Transfer, Relieves Pressure Points, Suitable for Adjustable Bed Frames, Conforms To Body Coil Count: 513 Coils Manufacturer Warranty: 10 Year Bed Size: Twin Xl Measurements: 38 Width/Inches, 79.5 Length/Inches, 11.5 Height/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 Mattress Height: 11.5" Country of Origin: Made in US Visit our Furniture & Mattress Customer Care Center for delivery options, protection plans and other services. Problem with an order or need help with a return? Our Furniture & Mattress Customer Service agents will be happy to help. Give us a call at 1-800-442-7902 Don’t forget to print off your delivery checklist to avoid any delays or issues when delivering your item. 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