ABOUT THE COLLECTION: Better rest meets peace of mind in the Modern Luxury collection from King Koil. Crafted for an unparalleled sleep experience, this collection blends sophisticated design with premium features for ultimate comfort and all-night support. The Modern Luxury collection incorporates advanced coil technologies to enhance posture alignment, while specialty foams regulate temperature and minimize motion transfer—ensuring a deeper, more restorative night's sleep for everyone. View all mattresses in the Modern Luxury collection. QUILTING LAYER:Super stretch tencel fabric provides maximum comfort that is natural, breathable and sustainable. Materials: Super Stretch Tencel, Silk/Wool blend, FR fibers, Extra Firm Foam, High Performance Foam COMFORT LAYER:Extra firm high density performance foam for longer lasting support. Materials: Extra Firm Foam, High Performance Foam SUPPORT DETAILS:The ContourFlex Encased Coil System is designed to minimize motion disturbance while offering body-conforming comfort. Its precision-engineered coils relieve pressure points, providing targeted support for a restful and undisturbed sleep experience. Excellent Edge™ foam encasement offers a superior seating edge, ensuring enhanced stability and extended durability. Materials: ContourFlex Encased Coil System