![to [hit] the sack](https://cdn.langeek.co/photo/21212/thumb/350?type=jpeg "to [hit] the sack")
to rest one's mind and body, with one's eyes closed
去睡觉, 上床睡觉
长途开车后，我们早早上床睡觉了。
![to {not} [sleep] a wink](/assets/img/no-pic-700w.png "to {not} [sleep] a wink")
to get no sleep
to manage to get a full sleep without anyone or anything interrupting
睡得很沉, 睡得很香
外面那么吵，她还是睡得很沉。
to constantly turn over to the sides due to having difficulty sleeping
翻来覆去睡不着, 在床上辗转反侧
房间太热了，她在床上翻来覆去睡不着。
to manage to get some sleep
睡一会儿, 眯一会儿
夜班开始前你应该先睡一会儿。
sleeping so soundly that one cannot be easily awakened
睡得不省人事, 睡得叫不醒
孩子们跑了一整天后，睡得叫都叫不醒。
a short, light nap or brief sleep taken to rest and regain energy
小睡一会儿, 打个盹
午饭后，她在沙发上小睡了一会儿。
to start going to sleep
去睡觉, 上床睡觉
看完最后一集后，她终于去睡觉了。
to get in bed for sleeping
上床睡觉, 去睡觉
明天要早起，我们睡吧。
someone who has a tendency to get up early every morning
早起的人, 晨型人
我不是早起的人，所以七点对我来说都早得难受。
used to tell someone it is time to get up and get out of bed
起床啦, 快起来
快起来，我们十五分钟后就得出门。
a person who has a tendency to sleep very late at night
夜猫子, 晚睡的人
我是夜猫子，所以早会对我来说简直是折磨。
used to refer to someone who is completely awake and conscious
完全清醒了, 彻底醒过来了
她喝完第二杯茶后才算彻底清醒。
(of a person) in a state of deep unconsciousness or sleep, typically due to extreme fatigue
睡得不省人事, 倒头就睡着
车一开动，宝宝就睡得很沉了。
to sleep very deeply
睡得很沉, 睡得很香
她睡得很沉，连闹钟都没听见。
