The Repose Kingsize Enigma Orthopaedic 5ft Mattress. 12.5 gauge orthopaedic unit in a 9 gauge supportive steel frame offering great support to your body. The cotton damask fabric & luxurious hypoallergenic fillings also provide superb comfort. This 9inch deep firm feel mattress has vertical stitched borders & is sculpture quilted. Suitable for bedsteads.