The Stearns and Foster Hurston Firm mattress is the perfect solution for a comfortable yet firm sleep experience. A supportive layer features premium gel memory foam for a sumptuous feel that adapts to your body and relieves pressure, providing support that lasts all night long. IntelliCoil innerspring, a patented coil-within-coil design, allows sleepers of all body types to find the perfect level of support, while a high-density coil border of the PrecisionEdge system ensures this mattress holds its shape. As an added feature, the AirVent ventilated coil system works with external air vents to increase breathability and promote cool, comfortable slumber throughout the night. To top it off, the quilted covering includes Tencel, a sustainably sourced fiber used in athletic wear designed to wick away moisture. 10 Year Limited Warranty - Code F3 - 10/10 - https://www.roomstogo.com/mattress/warranty/stearns-and-foster