1. sleep on something 考虑一下再答复

We asked Judy if she would join our club and she answered that she would sleep on it.

我们问朱迪要不要参加我们的俱乐部，她说她要考虑一下再答复。

We will have to sleep on your invitation until we know whether we will be free Monday night.

我们先看看星期一晚上有没有空，到时再考虑能否赴你的约。

2. hit the sack 睡觉

Louis was so tired that he hit the sack soon after supper.

路易斯太累了，所以吃过晚饭就早早上床睡觉了。

3. to pull an all-nighter 熬夜做某事

I have to pull an all-nighter to get this project done.

我得熬夜把这个项目做完。

4. toss and turn

Toss and turn就是“辗转反侧”的意思。

例如《识骨寻踪》中的一句对白：

Booth: Yeah. I’ll go home tonight and I’ll lie in bed and I’ll toss and I’ll turn and I’ll beat myself up. And, uh, I’ll question everything.