Pocket Spring Mattress, US King, Fiberglass Free, Medium Feel, Motion Isolation, Certified Safe Foams & Fabric, Mattress in A Box (193.0 X 203.2 X 30.5 CM)

• FIRM SUPPORT, PLUS MORE - Our firmest mattress ever is engineered with heavier gauge steel independent pocket innersprings for added stability and extra firmness, ideal for stomach sleepers and plus-sized individuals • SUPPORTIVE FOAM & POCKET SPRINGS - Soft comfort foam, durable high-density foam and motion-isolating independent pocket springs with a quilted jacquard cover offer a firm feel that’s perfect for stomach sleepers and those who enjoy a very firm mattress • CERTIPUR US CERTIFIED - Highest quality foam is CertiPUR-US Certified for durability, performance, and content • EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box that’s easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours • Worry-free 10 year limited warranty included; twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 lbs