Finally she drifted into sleep.

最后她不知不觉地睡着了。

《牛津词典》

He slipped unawares into sleep.

他不知不觉地睡着了。

《牛津词典》

Studies of birds may offer unique insights into sleep.

对鸟类的研究可能会对睡眠提供独特的见解。

youdao

He also tried hypnosis. He wanted to see if putting patients into a sleep-like condition would help ease troubled minds.

VOA: special.2010.04.13

Probably the best answer is our body is worn out during the day and sleep is necessary to put it back into shape.

最佳的答案应该是,一天下来，我们的身体已经疲惫了,有必要进行睡眠，以恢复状态。

耶鲁公开课 - 心理学导论课程节选

The poem identifies also cold and passion with dawn the moment of awakening, which is also a moment of coming into reality from dream and sleep.

诗歌还将黎明的寒冷与激情,比作一种觉醒时刻,从睡梦和幻想回到现实的时刻。

耶鲁公开课 - 现代诗歌课程节选

Friday, the pair collapsed into sleep at Mr. Harris's mother's house in Aurora.

WSJ: Witnesses Describe Colorado Theater Shooting

The Trakdot automatically goes into sleep mode when it hits 100 knots and wakes up when the plane is at the destination gate.

CNN: 5 fun and odd gadgets from CES

Her unit puts new babies into sleep sacks while they're in the hospital and sends each one of them home with a free sack of their own.

WSJ: How to Swaddle an Infant Safely