Is the Weighted Blanket machine washable? August 12, 2020 14:38 The outer cover is machine washable. The inner weighted blanket can be spot cleaned. Related articles Does the Weighted Blanket get hot? What is the science behind Weighted Blankets? How much weight can be put on the Adjustable Base? Where does my Mattress Protector go? Can I buy the Mattress Protector without buying a Helix Mattress?