He just sat there and it didn't take maybe 10 minutes and he was done.
He has a LOT of hair and he likes to wear it a little long so that when he shakes his head his hair will fly. (Like Chandler and Garrett). He got that idea from watching them shake the water out of their hair when they were swimming. His hair is so heavy when wet it still will not move when it is wet, but when it is dry he can make it fly.