Going to bed early (earlier than usual). Used as a noun or with suru as a verb.
毎日早寝していると体調が良くなることが多い。
If you go to bed early every day, your health often improves.
今日は疲れたから早寝するつもりだ。
I'm tired today, so I plan to go to bed early.
子どもは早寝早起きの習慣が大切だ。
For children, the habit of going to bed early and getting up early is important.