Highgrove Topaz Small Single Mattress A shimmering sleeping experience is assured when you slide between the sheets on this luxurious 12" deep hand cotton rosette tufted mattress which allows you & your body to enjoy an exceptional night's sleep. 12.5 gauge Bonnell spring unit luxurious layers of fillings & hand tufted for even support Extra deep 12" mattress for greater comfort Firm sleep system for back pain sufferers Hand tufted for even support