. *Mattress Springs:2,450 luxury pocket springs in 50 150cm, 1.32mm Vanadium steel springs, 52mm in diameter, individually sewn calico pockets, hand formed into a honeycomb nested unit. *Mattress Border:23cm deep with four rows of genuine hand side-stitching, horizontal handles, air vents on all sides, border edges upholstered in protective lambswool, finished with piped ticking. *Mattress Upholstery:Upholstered with a wool spring protector pad, then 1,000gsm bonded British fleece wool and cotton, plus 1,350gsm hand-teased, long-stranded horsehair blended together with real Shetland Isle fleece wool and bamboo, enclosed in a hair-proof cambric cover and finally overlaid with 900gsm blended real Shetland Isle fleece wool and cotton, hand tufted with hand-tied woollen tufts, covered with satin ivory Belgian ticking from our Collection. Other options are available. *All Vispring mattresses carry a30 Year Guarantee. .