Inners: With 13.5 open coil Bonell spring for durability. Mattress: Get a quilted memory sprung mattress! Size: Choose from small single, single, small double, double, king or super-king! Comfortable: Contours to your body shape so you can enjoy a better night's sleep! Material: Deep micro quilting gives you extra comfort and support! Features: Benefit from Cooltouch fabric technology. | Quilted Memory Sprung Mattress | Wowcher