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 PillowTop for exceptional comfort. The Duraflex™ Coil Edge increases durability, while MoistureProtect™ helps to keep you cool, and Surface-Guard Technology™ keeps the mattress protected. Our innerspring mattresses offer exceptional full-body support with ease of movement for a responsive, sleep-on-top-of -the mattress feeling. Sealy's coil design promotes proper alignment and supports you while you sleep, so you can wake up ready to take on the day. Cover: Surface-GaurdTM & MoistureProtect TM Quilt: 0.5" SealySupportTM Gel Foam Medium Targeted Support: 0.5" SealyCoolTM Gel Memory Foam Foam Layers: 2.0" SealySupportTM Gel Foam Firm Mattress Top Type: Tight Top Mattress Type: Innerspring Included: 1 Mattress(es), 1 Box Spring(s) Features: Cooling, Foam Layer, Cushioning Layer, Antimicrobial, Non-Toxic, Cooling Layer, Wrapped Coils 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: Firm Mattress + Box Spring Measurements: 20 Depth/Inches, 39 Width/Inches, 75 Length/Inches Care: Spot Clean Certifications And Listings: Certipur-Us Certified, Cpsc - 16 Cfr 1633 Compliant, Cpsc - 16 Cfr 1632 Compliant 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. This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads This mattress meets the requirements of 16CFR Part 1633 (federal flammability (open flame) standard for mattress sets) when used with foundation