Translation of "Sack" in Chinese

Let's hit the sack.

我們去睡覺吧。

- I have to go to sleep.
- I need to hit the sack.

我该去睡觉了。

In British English, "to get the sack" means to be fired from your job.

英式英語的「to get the sack」是被解僱的意思。

- I will hit the sack.
- I'm going to bed.
- I am going to bed.

我要睡了。

- I got the sack but I've a little saved up, so for the time being I won't be troubled by living expenses.
- I got fired from the company, but since I have a little money saved up, for the time being, I won't have trouble with living expenses.

虽然我被公司解雇了，但是我还有点存款，所以目前不用担心生计问题。