Designed for absolute luxury, the Whole Sleep cotton 7 is a beautifully considered pocket-sprung mattress. With a silk, wool, cashmere layer to help regulate body temperature naturally, and layers of soft cotton, the Whole Sleep cotton 7 combines comfort with an innovative pocket spring system. Each and every luxury mattress is meticulously hand-built to bring you comfort, relaxation, and pleasure. You will never own a more comfortable and more beautiful bed.