. *Mattress Springs:2,112 luxury pocket springs in 50 150cm, 1.42mm Vanadium steel springs, 61mm in diameter, individual sewn calico pockets, hand formed into a honeycomb nested unit. *Mattress Border:23cm deep with three 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 1000gsm bonded British fleece wool and cotton, plus 1200gsm long-stranded horsehair blended together with wool, enclosed in a hair-proof cambric cover and finally overlaid with 900gsm blended British fleece wool and cotton, hand tufted with felt washers, covered with satin ivory Belgian ticking from our Collection. Other options are available. . All Vispring mattresses carry a 30 Year Guarantee.. .