. *Mattress Springs:2,242 luxury pocket springs in 50 150cm, two layers of 1.42mm Vanadium steel springs, 60mm in diameter, sewn in individual 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 with coir and wool, hand finished with piped ticking. *Mattress Upholstery:Upholstered with 1,000gsm bonded British fleece wool and cotton, then 1,200gsm hand-teased long-stranded horsetail blended with real Shetland Isle fleece wool, enclosed in a hair-proof cambric cover and overlaid with a layer of 1,200gsm blended real Shetland Isle fleece wool and cotton. Covered with satin ivory Belgian ticking. Other options are available. Hand tufted with hand-tied woollen tufts and twine. *Divan Construction Sovereign Divan:1,344 hand-nested calico-pocketed springs mounted on a screwed and glued solid timber frame. The divan frame is covered with insulating wadding, and the ticking case is calico lined for added protection. *Divan Upholstery:1,200 gsm natural coir pad overlaid with 1,200gsm blended British fleece wool and cotton.Covered with satin ivory ticking or upholstery fabric from our collection. Other options are available. Hand tufted with hand-tied woollen tufts and twine. All Vispring mattresses carry a 30 Year Guarantee.. .