I regularly put mine in the washing machine. I use cold water, with half the soap in a front loader. At first I just put them in the dryer on a cold air cycle until damp. Now I dry them completely. I was surprised how well they come out because I had a professional steam cleaner tell me that he wouldn't clean my sofas because they would have streaks. I bought a Bissel Green Machine to take care of the rest of the sofa with decent results.