Those who sleep more soundly on a firm, supportive sleep surface will appreciate the body contouring qualities of the Sealy Midsummer Night mattress set. Featuring just enough conforming ActiveFlex® foam at the surface to lull you to sleep, this mattress's true benefits are in the support layers. Featuring Sealy's patented Apex® 2-stage coil design, each individually wrapped titanium coil is softer at the top and firmer underneath, delivering deep down support while keeping comfort in mind. Together with the Gel Memory Foam CoreSupport Center™, this mattress provides a cool, supportive sleep while minimizing motion transfer between sleep partners. Sealy Midsummer Night Low Profile King Mattress Set10 Year NPR Warranty