Featuring select materials that are up to 70% sustainable, the icomforteco supportive mattress offers a hybrid construction with a classic, quilted-top feel-with upgrades available for even more cooling, comfort, and pressure relief. Ultra plush feel - great for side sleepers that enjoy that sinking into your mattress feeling. Cooltemp cover powered by repreve. This cool-to-the-touch, breathable cover is made with recycled plastic bottles. Terra fusion memory foam. Foam made from 30% plant-based material that provides pressure relief and reduced motion transfer for uninterrupted sleep. 1000 series 5-zone quad coil support system - made with 85% recycled steel, provides targeted pressure relief and support for your back and thighs-and cradles you everywhere else. Recycled fiber base - compressed recycled fiber provides a supportive base under the mattress core. 100% USA assembled, certipur-US certified, powered by repreve Designed and built in USA Mattress Top Type: Tight Top Mattress Type: Gel Memory Foam, Memory Foam Included: 1 Mattress(es) Features: Breathable, Foam Layer, Temperature Regulating, Cushioning Layer, Antimicrobial, Cooling Layer, Adjustable Base Compatible Additional Information: Eliminates Motion Transfer, Conforms To Body, Relieves Pressure Points, Suitable for Adjustable Bed Frames Manufacturer Warranty: 10 Year Bed Size: Twin Xl Measurements: 40 Width\Inches, 79.5 Length\Inches, 16 Height\Inches Maximum Weight Limit: 1000 Lbs Base Material: 100% Foam Comfort Type: Ultra Plush Care: Spot Clean Certifications And Listings: Certipur-Us Certified Mattress Height: 16\" 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. Serta iComfortECO Q40HD Ultra Plush Pillow-Top Quilted Hybrid - Mattress Only