ABOUT THE COLLECTION:The Royal Sovereign Collection represents timeless elegance and refined comfort. Made using materials like luxury wool and latex, it features patented Kluft Standard and a Belgian Jacquard Damask cover with exclusive BioCeramics technology for the ultimate sleep experience and recovery. View all mattresses in the Royal Sovereign collection. QUILTING LAYER:Over 40 patented, handcrafted outer tufts that allow the mattress to breathe while holding fibers and upholstery layers in place, improving support while minimizing deep body impressions. Materials: Belgian Jacquard Damask with BioCeramics™ technology, wool fibers, HiLoft® FR Fibers, Pillowflex, plush convoluted quilted foam, quilt backing COMFORT LAYER:Graphite infused Celsion™ TerraPur™ latex provides clean, breathable pressure relief and cool, consistent comfort. Materials: 2 layers of Luxury Firm graphite infused Celsion™ TerraPur™ latex, 2 layers of luxury firm HD foam SUPPORT DETAILS:Support-flex tempered 13.75 gauge individually wrapped coils give support and durability. High density encased perimeter provides superior edge support. Materials: Support flex tempered 13.75" gauge individually wrapped coils, high density foam encased perimeter support system BOX SPRING:Cushioned wood platform covered with luxury Belgian Jacquard Damask, non-skid top, and a dust cover on the bottom. Materials: Wood