寝癖 “Morning Hair” that is, hair that sticks up due to sleeping

寝癖
ne guse
morning hair that is, hair that sticks up due to sleeping

寝 ne sleep
癖 kuse habit; fault [In our example there is a phonetic change to guse]

口癖 kuchi guse - favorite saying, what one says often [A]
昼寝 hiru ne - (noon) nap [B]
朝寝坊 asa ne bou - oversleep in morning; late riser [I]