night

他度过了一个不眠之夜，担心他的考试。

He'd spent a sleepless ___night worrying about his exam.

酷热导致我们许多人度过了一个不眠之夜。

The intense heat caused a sleepless ___night for many of us.

喝了太多咖啡后，我度过了一个不眠之夜。

After drinking too much coffee, I had a sleepless ___night.