100% Fleece Get cozy during the cold season with Serta heated fleece blanket featuring premium quality and classic tri-rib rich texture for your personal comfort. Quick to heat up creating even heat distribution for your personal comfort. And it's ETL certified tested and passed a set of safety standard. Super soft and cozy plush heated blanket comes with 10 level heat setting controller and 1-12 hour auto shut off safety feature. DO NOT LEAVE CONTROLLER COVERED WHEN IN USED TO AVOID OVERHEATING. 1 Heated Blanket: 62"W x 84"L Conveniently machine washable and carry 5 years limited product warranty.