1. I couldn't fall asleep last night.

我昨晚睡不着。

2. I passed a wakeful night.

我彻夜未眠。

3. I was up all night.

我一整晚都没睡。

4. I had a sleepless night worrying about my exams.

我因为担心考试一整夜没睡。

5. I've been suffering from insomnia.

我近来饱受失眠之苦。

6. I didn't close my eyes until early morning.

我一直到凌晨才合眼（入睡）。

7. I tossed and turned in bed all night./I tossed about in bed all night.

我一整晚辗转难眠。

8. Sleeping pills somehow didn't work for me last night.

安眠药昨晚不知怎么搞的对我一点作用都没有。

9. I was counting sheep all night.

我一整晚都在数羊。

10. I guess I drank too much coffee, I was wide awake all night.  

我猜我可能是喝了太多咖啡，一整晚都很清醒。