Brentwood Home Posture Plus 11-inch Inner Spring Mattress, 100% Made in USA, CertiPUR-US, All Natural Wool Sleep Layer, California King Size Posture Plus 11-inch Mattress uses individually wrapped 14 gauge coils with 4 zones to provide unique support for your head, lumbar, and legs with extra edge support. All-Natural Wool Sleep surface provides a clean, healthy, and breathable layer of comfort to your mattress. Wool wicks away moisture and regulates temperature to keep you cool in the summer and warm in the winter. A layer of soft comfort foam and padded upholstery combined into a deluxe euro top offers ultra plush comfort with precise support Mattress compressed and rolled for shipping -- easy to carry and saves you money on shipping costs. Works with RestEasy Foundation Feel: Firm, Support Level: High - California King Size 72" x 84" x 11" - Includes 10 Year Full Warranty