She was a person accustomed to having eight hours' sleep a night.

她是那种习惯每晚睡八个小时的人。

《牛津词典》

I managed to grab a couple of hours' sleep on the plane.

我在飞机上抓紧时间睡了两个钟头。

《牛津词典》

In our society, you're considered dynamic if you say you only need 5.5 hours' sleep.

在我们的社会，如果你说你只需要5个半小时的睡眠，人们就会认为你很有活力。

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Studies have shown that over time, most humans need eight to eight and a half hours of sleep for the best health.

VOA: special.2009.08.26

How many people here on average-- from the beginning of the semester until now get on average more than eight hours of sleep a night?

这里平均有多少人-,从开学到现在,平均每晚睡超过八小时的？

耶鲁公开课 - 心理学导论课程节选

I think for the past three months, I've only had five or six hours of sleep at night.

我觉得在过去三个月里，每晚我就睡5到6个小时。

I need 实战 - SpeakingMax英语口语达人

Study subjects who had less than seven hours of sleep were at greater risk than those who got eight hours of sleep a night.

CNN: Study: Can more sleep help fight off colds?

Andrew Lambourne, from the campaign group No More Night Flights, which demonstrated outside Luton town hall, said without controls in place "we will effectively only get five hours sleep".

BBC: Protesters outside Luton Town Hall

After a marathon session until well after midnight, Spain's finance minister suggested that the negotiators should get a few hours sleep, leaving the documents to be drawn up and signed thereafter.

ECONOMIST: Charlemagne