The Vogue Beds Edward Back Care King Size Divan has a Open coil orthopaedic 12.5 gauge spring unit inside in a 9 gauge rod edge frame. Great for people who like a firm bed. Platform top divan base. Linking bars & twin wheel castors. 4 flag-stitched handles with a 3 tier side-stitched border. Hand tufted luxurious 10inch deep mattress with Hypo-allergenic fillings & all over organic cotton fabric.