Right. Well. Should we hit the sack?

好吧我们是不是该就寝了？

I'm going to hit the sack, I'm exhausted.

我筋疲力尽，准备去睡觉了。

I am going to hit the sack, I am exhausted.

我精疲力尽了，准备去睡觉了。

I need hit the sack and start everything tomorrow.

我得睡了，明天再开始新的一切。

Yeh! I am still beat and I need to hit the sack again!

是啊！我还是觉得累死了，我需要再回去睡一觉才行。