髪

hair 

Your hair look like bush.

寝ぐせ
I have bedhead.
I've had bedhead all day today.
My hair has been sticking up/out since this morning.
stick up  上に跳ねている感じ
stick out 横に跳ねている感じ

髪がボサボサ
My hair is messy.
My hair is a mess.