ComfortBonnell Spring InteriorIn-House Manufactured ComfortBonnell Spring Unit with Border Rod gives maximum Support while not compromising on ComfortAirbond & Wool Upholstery Layers80mm of the new Airbond Mattress filling, gives a Medium feel with optimal Back Support, breathable for a comfortable nights sleep.  10mm Wool Layer for a Healty Sleeping EnvironmentDeep Tufted Soft Knit CoverDeep Tufted Mattress for optimum support and to prevent upholstery movement, the Mattress if finished in a beautiful Soft-Knit Fabric.NO-TURN MODEL