Does my electric blanket offer overheat protection? Issy 24 November 2021 12:07 Updated Overheat protection is built into all Cosi Home electric blankets. Related articles What is the difference between a heated throw and an electric blanket? Can my electric blanket be used with a mattress topper? User Manual Can I use my electric blanket on a water bed? Can my electric blanket be used on a sofa to sit or lean against, instead of a bed? Comments 0 comments Article is closed for comments.