Memory Duet Two separate layers of pressure-sensitive 'Mind Foam' act together in perfect harmony to provide the ultimate in sleeping comfort > Hypo-allergenic > Density: 55kg/m > 18cm deep > 10 year warranty > Deko-tex certified > Orthopaedic 3' 0'' 4' 0'' 4' 6'' 5' 0'' 6' 0'' £249 £299 £299 £349 £449 FREE delivery on all mattresses Free NEXT-DAY DELIVERY on 3' and 4' 6'' CLICK HERE TO ORDER or call the store on 0800 801 458