noun
bedhead; hair messed up from sleep
Describes hair that is disheveled or tangled after sleeping. Often used in the morning or after a nap.
朝起きたら寝乱れ髪で、鏡を見てびっくりした。
When I woke up in the morning, my hair was a mess and I was shocked looking in the mirror.
彼女は寝乱れ髪の
She went to the front door with her bedhead still a mess.