Deep sleep is associated with slow brain waves, and larks spent 50% more time in such slow-wave sleep than owls did.

睡眠之深与否与慢波有关，而百灵鸟型处于慢波睡眠的时间比夜猫子型多50%甚至更多。

youdao

Zeo monitors your brain waves while you’re sleeping to produce a “ZQ score”, which is a measure of the quantity and quality of your sleep each night.

Zeo的头戴装置可以在你睡觉时监测你的脑电波，并给出一个“ZQ分数”，用来测量你的睡眠数量和质量。

youdao

No matter we are in action or sleep, our brain keeps producing electric current and intense pulse that is, the so-called brain waves.

我们的大脑，不论行动坐卧或是睡觉，都会不断的产生「电流脉冲」，这些电流也就是所谓的「脑波」。

youdao

This is according to a patent application the company filed that proposes, among other things, an advanced alarm clock that monitors brain waves to detect when you enter and leave REM sleep.

ENGADGET: Sony patent application puts electrodes in a pillow, eases you out of slumber