An elderly person may nap during the day and then sleep only five hours a night.

上了年纪的人白天会小睡一会儿，然后晚上只睡5个小时。

《柯林斯英汉双解大词典》

Five people died in a house fire last night.

有五人死于昨夜的住宅火灾。

《牛津词典》

I think about the five days of pure rain, where people were soggy at the first night and it only got worse.

我想到了那次连续五天的瓢泼大雨，人们在第一天晚上都湿透了，状况越来越糟。

youdao

While the adults go out at night for food, the young bats hang out in the cave for four or five weeks.

VOA: special.2009.12.07

that has been getting under five hours a night?

每晚睡不到五小时的？

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

For the study, very short sleep patterns were defined as less than five hours a night, short sleep was five to six hours a night, standard sleep was seven to eight hours, and long sleep was nine or more hours a night.

CNN: Does your diet influence how well you sleep?

The Dream, a mid-sized, 4, 000 passenger boat, will sail three-, four- and five-night Bahamian itineraries departing from Port Canaveral, Fla.

BBC: Keeping Disney magic afloat

The ship was in the middle of a five-night cruise, a spokeswoman said.

CNN: Coast Guard interviews rafters rescued by 2 cruise ships