This wonderful polyester Slumberland mattress topper will send you sweetly to sleep with its sumptuous bounce back filling. The full mattress size brings you extra warmth and comfort and the elasticated straps make fitting easy and secure. There are 9 heat settings to choose from with preheat and all night use. Low energy consumption. Features: Made from polyester. Corner straps. Dual detachable controls. 9 heat settings. 15 minutes heat-up time to reach 37C. Suitable for all night use. Low energy consumption. Safety features: Overheat protection. General information: Reusable storage bag. Size W137, L190cm - suitable for double bed. Machine washable and suitable for tumble drying. 3 year parts and labour manufacturers guarantee.