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晚没睡。 　　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. 　　我一直到凌晨才阖眼（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好象对我没用。 　　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。 

I was counting sheep all night...