So you get the profits of the firm minus the disutility of having missed all that sleep.

你的收益是公司的利润,减去放弃了休息的负效用

耶鲁公开课 - 博弈论课程节选

Her dog barks all night long and won't let me sleep.

她养的狗整夜整夜地叫唤，让我根本没法入睡。

I hate 实战 - SpeakingMax英语口语达人

This explains why we sleep at all and this probably explains why we sleep at night.

这个解释了我们为什么要睡觉,这个解释了我们为什么在晚上睡觉。

耶鲁公开课 - 心理学导论课程节选

First of all,notice the obvious point that sometimes people die in their sleep,unexpectedly.

首先，有时人是在睡梦中无预兆地死去。

耶鲁公开课 - 死亡课程节选

First,we'll put you to sleep when we do all this procedure.

首先会让你进入睡眠状态。

耶鲁公开课 - 死亡课程节选