100% Fleece to Sherpa Serta - Rest Easy with a Brand of Unmatched Safety & Trusted Comfort. Serta's heated blanket is ETL certified and independently tested to meet the highest safety standards. Decades of proven expertise, committed to safety, making Serta a favorite brand. Ultra Soft with Dual Control - Get cozy with Serta heated sherpa blanket. Queen and larger sizes come with dual zone temperature capability and 2 controllers to adjust each bed side independently for everyone's personal comfort 5 Heat Settings & Auto-Shut Off - Features smart technology to keep your bed warm, equipped with 10 heat settings. And a 1-12 hour auto shut off safety timer. That you can set in it from 1 hour increments up to 12 hours max. Input Voltage: 120V/60Hz 1 Heated Blanket - 90"W x 100"L Twin & Full Size comes with one controller, while larger sizes come with 2 controllers Easy Care - Conveniently machine washable and carry 5 year warranty. DO NOT LEAVE CONTROLLER COVERED WHEN IN USE TO AVOID OVERHEATING