I put it in the dryer with tennis balls, per the instructions on the label (at least what I remember reading on the label in my sleep-deprived haze) and it came out all lumpy and deformed I contacted the company about it and they said I would have to mail it to them so they could determine if they were going to replace it for me or not. So I just ended up getting a new one when DD#2 was born.
Mom to DD#1 December '06, DD#2 Feb '09 and DS March '12
Re: Washing a Boppy