TECHNOLOGY Hand-nested calico pocket spring construction Spring tension: Soft, Medium, Firm, Extra Firm 1638 springs in size 182 x 200 (Superking) 1326 springs in 150 x 200cm (King) 1116 springs in size 135 x 190 (Double) 720 springs in size 90 x 190 (Single) UPHOLSTERY Made exclusively from natural fillings: British fleece wool, hand-teased Devonshire fleece wool, British fleece needled wool Finest quality ticking Hand tufted with felt washers BORDERS Upholstered with protective wool 2 rows of hand side-stitching Horizontal handles Air vents Overall mattress depth: 21cm + 6cm doming (+/-2cm) Perfectly paired with: WOOL DE LUXE DIVAN With a solid timber frame, hand-nested pocket springs and fine finishes, it uses softly and heavily needled wool for unique comfort. Hand-nested pocket spring construction 600 springs (high divan model) in 150 x 200cm size (5ft x 6ft 6in) Solid timber frame Choice of high, low, shallow or drawer divan Softly needled and heavily needled British fleece wool Finest quality ticking or upholstery fabric This product is made of FSCTM-certified and other controlled materials