Definition
To successfully enter a state of sleep; to fall asleep.
入睡
I was too excited last night and it took me a long time to get to sleep.
昨晚我太興奮了，花了很長時間才入睡。
I usually go to sleep after reading a few pages of a book.
我通常在看幾頁書後就會入睡。
She got to sleep quickly after listening to some calming music.
她在聽了一些舒緩的音樂後很快就入睡了。