The Electric Heated Blanket Under Blanket by The Lyndon Company helps you to take complete control of your comfort and warmth. The electric blanket is made from 100% polyester which is soft to touch but durable, providing added comfort to your mattress. Featuring three heat settings that you can adjust to set the temperature that is just right for you. The Electric Blanket is an energy efficient and affordable way to stay warm for less. Pre- heating your bed for 1 hour on a low heat setting costs as from little as 1p, so you can afford to cosy up night after night. As sleep experts we recommend turning off the appliance before falling asleep to regulate your core temperature for a less disturbed sleep