I've not been able to sleep for the last few nights.

最近几个晚上我一直无法入睡。

《柯林斯英汉双解大词典》

I didn't get much sleep last night.

昨晚我没睡好。

《牛津词典》

I couldn't sleep last night.

我昨天晚上睡不着。

《牛津词典》

Last August,a study in the journal Sleep Medicine said children who go to bed after nine o'clock took longer to fall asleep and slept less.

VOA: special.2010.06.09

That is heaven's part, our part To murmur name upon name, As a mother names her child When sleep at last has come On limbs that had run wild.

这是天国的本分，我们的本分,喃喃念着一个个名字，像一个母亲叫着她的孩子们,当睡意最终降临,那跑野了的四肢。

耶鲁公开课 - 现代诗歌课程节选

I didn't sleep well last night.

昨晚我没睡好。

I didn't 课堂 - SpeakingMax英语口语达人

This morning I woke up at 3 a.m. and that was the last sleep I would get.

FORBES: Down the Global Homestretch

Claude Choules, Britain's last living link to combat in World War I, died in his sleep last week at his nursing home in Fremantle.

BBC: Still settling in...

"I had dinner, watched a movie and went to sleep last night, " he said.

BBC: Garcia back to his best