AVAILABLE SIZES. *Standard Single: 90 190cm *Standard Double: 135cm 190cm *King Size: 150cm 200cm *Super King: 182cm 200cm *Emperor: 202cm x 200cm . Technology. *Pocket spring construction:1400 springs in a 150cm 200cm mattress *Spring diameter: 42mm *Wire diameter: 1.3mm Borders. *21cmdeep with protective wadding *Horizontal handleswith concealed fine mesh air vents Mattress Upholstery. *Bonded wool and cotton Pillow-Top Upholstery. *Vertically arranged polyester and wool *Wool, pashmina, bamboo, and alpaca *Layered wool and cotton Finish. *Belgian Damask ticking 63 Viscose, 37 cotton *Hand tufted with felt washers . The J. Marshall No. 3 Mattress carries a10 Year Guarantee.