This thermal fleece underblanket/protector is made from 100% Polyester for warmth, extra comfort and protection. It has a luxury soft fleece surface and a fully elasticated skirt to ensure a secure fit. All night warmth is created and retained from your own body heat. Our underblanket will help to prolong the life of your mattress and also provide a practical alternative to a electric blanket. 100% Polyester soft faux sheepskin fleece Fully fitted 30 cm deep knitted polyester side skirt Machine Washable Single: 90 x 190cm Double: 135 x 190cm King: 150 x 200cm Superking: 180 x 200cm