A:I'm exhausted. I need some sleep.
A:我累死了，太缺觉了。

B:Didn't you sleep well last night?
B：昨晚没睡好吗？

A:I twisted and turned all night, and couldn't sleep. I was worried about my mother's health.
A:我翻来覆去睡不着，担心我母亲的身体。

B:Don't worry. It's only a cold.
B：别担心。他只是感冒了。