I have 3 very hairy dogs, one in particular is a Great Pyrenees - wanna talk about hair loss daily? lol - clumps of hair are lost almost daily, regardless that I brush him often! And yes, I have made this member of our family many blankets to lay on, and yes, they become EXTREMELY hairy. And YES, I wash them regularly - but usually hang them on the line to dry - if they are too hairy then I do put them in the dryer. The hair collects into the dryer trap - and I remove them a couple of times while drying. They always come out looking like I just made them.