Starling is part of our Posturepedic spring collection, and these euro top beds are offered in firm and medium comfort choices. This mattress features the trusted motion-reducing encased coils and targeted memory foam support of similar Posturepedic spring mattresses, upgraded with the option of a soft pillow top for exceptional comfort. The Duraflex coil edge increases durability, while moisture protect helps to keep you cool, and surface-guard technology keeps the mattress protected. Mattress Top Type: Euro Top Mattress Type: Innerspring Included: 1 Mattress(es), 1 Box Spring(s) Features: Cooling, Non-Toxic, Antimicrobial, Cushioning Layer, Cooling Layer, Foam Layer, Adjustable Base Compatible Additional Information: Suitable for Adjustable Bed Frames Coil Count: 601 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Maximum Weight Limit: 500 Lbs Base Material: 100% Polyurethane Comfort Type: Medium Mattress + Box Spring Measurements: 23 Height/Inches Care: Spot Clean Certifications And Listings: Cpsc - 16 Cfr 1632 Compliant, Cpsc - 16 Cfr 1633 Compliant, 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. 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.