The orthopaedic mattress offers a 12.5 gauge Bonnell spring unit, with a 900gsm spring insulator pad and 500gsm polyester pad filling to help you get the best night's sleep. Finished in a soft-touch damask fabric with a feature contrast quilted border and hand tufted with felt washers, this mattress provides the best orthopaedic comfort level you need for a great night's sleep. Hashtag Home Size: Double (4'6)