春天来了，小熊睡醒了。

Spring came and little bear woke up.

youdao

我睡醒后感觉精力充沛，神清气爽。

I awoke feeling rested and refreshed.

《牛津词典》

它们只是在苔原上咀嚼食物，然后睡几个小时，睡醒了再吃。

They just chomp on the tundra, nap a few hours and feast 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