All right, let's say you're feeling groggy or cloudy first thing in the morning.

假如你一早起来就感觉昏昏沉沉，浑浑噩噩。

As you wake up feeling groggy, you wake up feeling worse and that's because you've gone into deep sleep.

有时当你醒来时会觉得昏昏沉沉，感觉身体更糟了，这是因为你已经进入了深度睡眠。

Have you ever slept a perfectly reasonable amount like 7 to 9 hours and woke up feeling groggy and tired?

你是否经历过睡了足够时间，比如7-9小时，但醒来时却头昏眼花、疲惫不堪？

So when you decide you're going to stay up late the night before a big test, then wonder why you woke up feeling groggy and mentally exhausted?

所以，当你决定在大考前一晚熬夜时，你会纳闷为何一觉醒来觉得昏昏沉沉、精神疲惫？

This is a frankenstein from other people because I get tired of feeling groggy and wasting the first few hours of my day so I looked to the people I respected.

这是来自其他人的科学怪人，因为我厌倦了昏昏沉沉和浪费一天的头几个小时，所以我向我尊敬的人求助。