electric bed warmer blanket 100% polyester sheet and bed liner can be placed between 150x80 cm3 step temperature switch protection against overheating power: 60 W hand washable weight: 2 kg 2 year warranty With the help of the ARDES 4U80A bed warmer, you can quickly and easily warm up your bed, thus helping you fall asleep quickly and easily. Its temperature can be adjusted in two stages for the most optimal effect. Place the bed warmer between the mattress and the sheet, turn it on and you can already feel its warming effect after 10 minutes.