​A champion of comfort for all, Serta, inc. (“Serta”) has pioneered sleep innovation for more than 90 years, bringing quality products to more than 150 countries worldwide. Every bed across the Serta’s® portfolio is designed to provide superior comfort, including the award-winning iComfort® collection. iComfortECO™ features select materials that are up to 70% sustainable*, this supportive foam mattress was designed for sleep that’s cool, comfortable, and restorative—with upgrades available for even more cooling, comfort, and pressure relief. *Sustainable refers to plant-based foams & recycled fibers and varies by model. See serta.com for deta ils.  Mattress Top Type: Tight Top Mattress Type: Hybrid Included: 1 Mattress(es) Features: Gel, Antimicrobial, Cushioning Layer, Foam Layer, Temperature Regulating, Cooling Layer Additional Information: Eliminates Motion Transfer, Suitable for Adjustable Bed Frames, Relieves Pressure Points, Conforms To Body Manufacturer Warranty: 10 Year Bed Size: Twin Xl Measurements: 40 Width/Inches, 12 Height/Inches, 79.5 Length/Inches Maximum Weight Limit: 1000 Lbs Base Material: 75% Foam, 25% Metal Comfort Type: Firm Care: Spot Clean Certifications And Listings: Certipur-Us Certified 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.