Silentnight Comfort Control Heated Mattress Topper in King Keep extra cosy when the nights are chilly with the Comfort Control Heated Mattress Topper from Silentnight. The deep filling means it can be used to add extra comfort to a tired, old mattress, and has elasticated straps to the corners which keep it securely in place. Allowing for personalised cosiness, each side can be individually controlled with 9 separate heat settings. Multizone control also lets you find the perfect warmth for different spots. A built-in timer means you never have to endure a freezing cold bed again - just set it to pre-warm and you'll be snug from the second you slip under the covers.Silentnight are the UK's most trusted sleep brand with over 70 years' experience in creating products for every type of sleeper. Material Content: polyester Washing Instructions: Machine Washable The quilted electric blanket creates a warm and cosy bed. Deeply filled for comfort,to rejuvenate your mattress, giving you a comfier night's sleep Control each half of the heated topper independently so that you can both choose your own temperature. Multizone control allows you to heat the bed separately. 9 heat settings so that you can control your comfort and choose the warmth that suits you. The built in timer means that a cold bed is a thing of the past, simply set the timer to pre-heat your bed. Special features include overheat protection which means the topper will automatically shut down if a hot spot or fault is detected. Machine washable at 40°C to keep your teddy fleece topper feeling fresh and hygienic. 3 year manufacturer's guarantee.