睡眠的重要性再怎么说也不为过。

It's difficult to exaggerate the importance of sleep.

youdao

这个被称为“智能睡眠”的闹钟会测量你的睡眠周期，等你进入最浅的睡眠阶段后再叫醒你。

The clock, called Sleep Smart, measures your sleep cycle, and waits for you to be in your lightest phase of sleep before rousing you.

youdao

如果你认为周末待在床上可以弥补你一个星期所失去的睡眠，那么再考虑一下。

If you think staying in bed on the weekends will make up for a weeks' worth of sleep deprivation, think again.

youdao

You start off and you go down, down, down, and then you come up, then you get your first REM cycle, again, again, again, again, again, and then you wake up.

从第一阶段开始，到下面的阶段，然后又往上，这时就出现REM睡眠，然后再一次次地循环，直到你睡醒。

耶鲁公开课 - 心理学导论课程节选