You can explain to the secretary that you woke up late and you had a terrible night because you fought with your wife.

你可以向你的秘书解释，你早上起晚了，昨晚你跟太太大吵一架，一整夜都没睡好。

I didn't 课堂 - SpeakingMax英语口语达人

I'm so worried that I can't sleep a wink.

我非常担心，以至于一整夜难以入眠。

so that 课堂 - SpeakingMax英语口语达人