Our starling soft pillowtop is an upgraded part of our Posturepedic spring collection. This mattress features the trusted motion-reducing encased coils and targeted memory foam support along with the Duraflex coil edge which increases durability, while moisture protect helps to keep you cool, and surface-guard technology keeps the mattress protected. Mattress Top Type: Pillow Top Mattress Type: Innerspring Included: 1 Mattress(es), 1 Box Spring(s) Features: Cooling, Cushioning Layer, Non-Toxic, Cooling Layer, Foam Layer, Antimicrobial 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: Plush Mattress + Box Spring Measurements: 39 Width/Inches, 75 Length/Inches, 24 Depth/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 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.