寝癖

1. Origins, structure, and basic meaning

• Structure: 寝癖 is read as ねぐせ and is a noun for hair bent or sticking up after sleep.
• Basic usage: Waking with bedhead appears in 髪に寝癖が付く, while fixing bedhead appears in 寝癖を直す.

2. Common pitfalls and similar expressions

• Resulting state and fixing it
  • Use が付く for the resulting state and を直す for fixing it.
• Difference from 髪型
  • 寝癖 is disarray caused by sleep rather than an intentionally arranged hairstyle.