寝ね違ちがい

noun

stiff neck from sleeping wrong; kink in the neck

Refers specifically to neck pain or stiffness caused by sleeping in an awkward position. Often used in everyday conversation.

See also: 寝違え

• 朝あさ起おきたら寝ね違ちがいで首くびが痛いたい。

  I woke up with a stiff neck from sleeping wrong.

• 寝ね違ちがいがひどくて、首くびを回まわせない。

  My neck is so kinked I can't turn my head.