你给时钟设定了你想要醒来的最晚时间，然后它会在之前的浅睡眠阶段按时叫醒你。

You program the clock with the latest time at which you want to be wakened, and it then duly wakes you during the last light sleep phase before that.

youdao

该装置可以衡量你的深度REM睡眠，你在夜里会醒来几次，然后在适当时间把你叫醒。

It measures both your deep and REM sleep, how many times you're woken up in the night and then wakes you up at the appropriate time.

youdao

接着我就会发出尖叫醒来。

Then I scream and I wake.

youdao