ABOUT THE COLLECTION:SFERRA mattresses achieve the perfect combination of comfort, support and temperature management for a dreamy night's sleep. Made from the finest materials and handcrafted utilizing the timeless techniques of master artisans, SFERRA mattresses are made to last and backed by a 20-year warranty.View all mattresses in the SFERRA collection. QUILTING LAYER:Covered with a luxurious silk-blend woven Belgian Damask, with a generous layer of supremely comfortable and breathable lambswool just below the surface. Every SFERRA mattress is outer-tufted by hand for exceptional durability. Materials: silk-blend Belgian Damask cover, a layer of 100% lambswool, a layer of cooling gel-foam, a layer of high-density support foam COMFORT LAYER:A layer of latex relieves pressure points while facilitating air flow, while a layer of plush memory foam and over 1,800 pocketed micro-coils conform to your body while providing unsurpassed support. Materials: a layer of latex, a layer of memory foam, over 1,800 pocketed micro-coils, two layers of cotton felt SUPPORT DETAILS:A zoned pocketed-coil innerspring provides the adaptive support your body needs for ergonomic alignment all night long. Each spring moves independently, reducing motion transfer between you and your sleep partner, and the foam-encasement provides a firm seat edge while eliminating roll-off. Materials: zoned pocketed-coil innerspring, foam encased BOX SPRING:SFERRA's Pocket-Sprung Foundation features over 1,800 micro-coils and a top layer of cotton felt to enhance the comfort and support provided by the mattress. The high-quality wood framing is Amish-built, while the foundation is fully upholstered in a luxurious silk-blend woven Belgian Damask.