寝入る
Godan
Intransitive
1
Godan verb with 'ru' endingintransitive verb
to fall asleep
その赤ちゃんは泣き疲れて寝入った。
The baby cried itself to sleep.
2
Godan verb with 'ru' endingintransitive verb
to sleep soundly
3
Godan verb with 'ru' endingintransitive verb
to become dull;to lose vigour;to slacken
Other forms
寝いる 【ねいる】 (search-only kanji form)