Wilburn is part of our Posturepedic collection featuring the trusted quality you would expect from Sealy. This mattress includes a reinforced foam center third for targeted back and core support, and solid edge technology to improve durability. The soft knit cover is treated with moisture-wicking moisture protect to help keep you cool, and surface-guard technology to keep the mattress protected. Available in a medium feel. Mattress Top Type: Tight Top Mattress Type: Innerspring Included: 1 Box Spring(s), 1 Mattress(es) Features: Cooling, Cushioning Layer, Non-Toxic, Foam Layer, Cooling Layer, Antimicrobial, Adjustable Base Compatible Additional Information: Suitable for Adjustable Bed Frames Coil Count: 336 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Maximum Weight Limit: 500 Lbs Base Material: 54% Polyethylene, 46% Metal Comfort Type: Medium Mattress + Box Spring Measurements: 21 Height/Inches Care: Spot Clean Certifications And Listings: Certipur-Us Certified, Cpsc - 16 Cfr 1632 Compliant, Cpsc - 16 Cfr 1633 Compliant 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. Set includes mattress plus box spring/foundation. King and Cal. King mattress sets feature 2-piece side-by-side foundations for easier navigation in tight spaces.