寝る vs 就寝する
Japanese word comparison
Listen to 寝る
Listen to 就寝する
| 寝る | 就寝する |
|---|---|
NE-ru verb (ru-verb, intransitive) | しゅうしんする verb (ru-verb, intransitive) |
| to sleep; to go to bed | to go to bed; to retire (formal) |
How they differ
就寝する is a formal/official way to say 'go to bed' and is used in reports, announcements, or medical contexts; 寝る is the common, casual verb used in everyday speech.
When to use each
When to use 寝る: Use 寝る in casual conversation to say you are going to bed or will sleep.
When to use 就寝する: Use 就寝する in formal writing, medical records, hotel information, or announcements about bedtimes.
Side-by-side examples
- 今日は早く寝るつもりだ。
(I plan to go to bed early today.) - 患者は22時に就寝しました。
(The patient went to bed at 10:00 PM.)
Register & nuance: 就寝する is formal and used in official, medical, or written contexts; 寝る is informal/neutral.