入睡：指开始入睡或睡着。
... get a sleep 睡一觉 get off to sleep 入睡, 睡着 使...入睡 get to sleep 设法睡着; 入睡 ...
... 以其昏昏昏倒 fall unconscious 入睡, 睡着 get off to sleep; go to sleep 入睡, 死亡 fall on sleep ...
入睡；睡着
Just try to get off to sleep for a while. Don't toss and turn restlessly.
凑合着睡一会儿，别折腾了。
Although I was absolutely exhausted from the long journey, I could not get off to sleep.
虽然长途旅行使我十分疲劳，可我就是睡不着。
I'd taken my phone off the hook in order to get some sleep.
我把电话听筒拿了下来，以便可以睡会儿觉。
And the pilot likely was fatigued, having failed to take advantage of his adequate off-duty hours to get sleep, the NTSB said.
My few experiments with this were rather unsuccessful, with the alarm once going off before I managed to get to sleep and another time failing to wake me up at all.
ENGADGET: Jawbone Up review (2012): a reboot and a shot at redemption