5 Ways to say Good Night in Japanese

1. おやすみ (Oyasumi)
Casual “Good night” used with family, friends, or people your age.

Example:
おやすみ、またあした！(Oyasumi, mata ashita!)
Good night, see you tomorrow!

2. おやすみなさい (Oyasuminasai)
Polite version of “Good night” — great for coworkers, elders, or formal situations.

Example:
先生、おやすみなさい。
(Sensei, oyasuminasai.)
Good night, teacher.

3. よいゆめを (Yoi yume o)
Literally means “Have sweet dreams” — poetic and gentle.

Example:
おやすみ。よいゆめを。
(Oyasumi. Yoi yume o.)
Good night. Sweet dreams.

4. ぐっすりねてね (Gussuri nete ne)
Means “Sleep well” — informal and warm.

Example:
今日はつかれたね。ぐっすりねてね。
You must be tired today. Sleep well.

5. おつかれさまでした (Otsukaresama deshita)
Not literally “good night,” but often used at the end of the day, especially after work or an event.

Example:
今日も一日、おつかれさまでした。
Thanks for your hard work today.

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