. *Mattress Springs:1254 luxury pocket springs in 50 150cm, 1.52mm Vanadium steel springs, 56mm in diameter, sewn in individual calico pockets and hand-formed into a honeycomb-nested unit. *Mattress Border: 21cm deep with two rows of genuine hand side-stitching, horizontal handles, air vents on all sides, border edges upholstered with coir and wool, hand finished with piped ticking. *Mattress Upholstery: Upholstered with 1,350gsm bonded British fleece wool and cotton.Overlaid with two layers of 900gsm blended British fleece wool and cotton.Covered with satin ivory Belgian ticking from the Vispring collection.Other options are available. Hand tufted with felt washers. All Vispring mattresses carry a 30 Year Guarantee. .