写作思路：充足的睡眠会让人精神抖擞，不论是做事还是学习都精力充沛，但是如果睡眠不足就会让人倦怠，对任何事都失去了兴趣。
正文：
Lack of sleep also caused me a lot of sleepiness, which made my academic performance fluctuate up and down. I didn't feel energetic all day and dark circles began to appear.
睡眠不足对还我造成了许多困挠，它使我的学习成绩上下波动，整天没有精神、黑眼圈也开始冒出来了。
After a few meals, I decided to get more sleep; I began to love sleep, try not to urinate every night, do eye exercises, comfortable their eyes, sleep as soon as possible during the nap。
在挨了几顿批后，我决定好好补充睡眠时间；我开始热爱睡眠，每天晚上尽量不拉小便，好好做眼保健操，舒适自己的眼睛，午睡时尽快入睡。
I know that having enough sleep time is also a kind of enjoyment. But recently I fell in love with reading books before going to bed. It took me more than an hour.
我知道，拥有充足的睡眠时间，也是一种享受。可是最近我又迷上了在睡前看书，一看就是一个多小时。
Because I went to bed late, my sleep quality dropped sharply, even lower than before. I went back to the time when I became a panda, the time when I yawned in class, the time when I got poor exam results, and the time when I went back to。
由于上床时间本来就晚，这使我的睡眠质量又急速下降，降到比原来还要低，我又回到了那种变成熊猫的时代，又回到了那种上课打哈欠的时代，又回到了那种考试成绩差的时代，又回到了……
One night, my mother told me some philosophical language, advised me to go to bed in the morning at night, reading time before going to bed should be appropriate, not too long. Only by ensuring high-quality sleep, can we have the spirit of class and work the next day.
一天晚上，妈妈跟我说了一些哲理性语言，劝我晚上早上床，睡前看书时间要适当，不能看太久。只有保障高质量的睡眠第二天我们才能有精神上课、工作等。
So, I began that kind of painful and happy "training": go to bed in the morning at night, read for half an hour at most, do more eye exercises, see more green things, go to bed early and get up early as possible... After several days of "maintenance", my dark circles finally left me again.
于是，我又开始了那种痛苦并快乐的“训练”：晚上早上床，看书最多看半小时，做更多的眼保健操，多看绿色的东西，尽量早睡早起……经过我几天千磨万击的“保养”我的黑眼圈终于再次离我而去了。
Adequate sleep is not only a kind of enjoyment, but also a way to relax. It is also a guarantee to improve your academic performance. Students, in order to make our performance better, please ensure adequate sleep, less stay up late, thank you.
充足的睡眠不仅是一种享受，也是一种放松的方法，它还是提高你学习成绩的保障。同学们，为了让我们的成绩更好，请大家保证充足的睡眠，少熬夜，谢谢。
When it comes to sleep, people’s opinions vary.Some people think that we should sleep as much as possible to keep our mind conscious.Some people think that we shouldn’t sleep too much because long time sleep makes people sleepy.In my opinion, appropriate sleep can not only refresh our mind but also keep us energetic.
当谈到睡眠的时候，人们意见不一。一些人认为为了让我们的大脑更清醒，我们应该多睡觉。一些人认为睡太久会让人们睡不醒。就我看来，我认为适当的睡眠不仅能让我们的大脑更清醒，而且也能让我们更有活力。
First of all, enough sleep makes us energetic.After a day’s working, people feel tired.Therefore, a good and enough sleep can help people recover from the exhausting status.
第一，充足的睡眠让我们更有活力。经过一天的工作，人们感觉很累。因此，充足的睡眠能够让人们从疲惫的状态中恢复过来。
Secondly, sleep enough can avoid illness.It is investigated that more than 90% people who suffers from insomnia are tending to fall ill easily compared with those who have enough sleep.
第二，充足的睡眠能让我们避免得病。据调查，90%的失眠患者比那些有着充足睡眠的人更容易生病。
Thirdly, enough sleep benefits our mind.According to researcher from American and French, the “Sharp Wave Ripple” in brain which is responsible for strengthen memory can only appear when people fall into deep sleep.If we have enough sleep, then our memory will be improved so that we can learn things more efficiently.
第三，充足的睡眠让我们的大脑更有益。美国和法国的研究者支出，大脑中的“尖波涟漪”专门负责记忆，这种涟漪只会在深度睡眠的状态下出现。如果睡眠充足，那么记忆会得到改善，因此我们能够更有效的学习。
All in all, enough sleep makes us energetic, benefit our mind and also help us to avoid from being ill.Hence, people should get enough sleep.
总之，充足的睡眠能让我们更有活力，有益于我们的大脑，能够避免生病。因此，人们应该充足的睡眠。本回答被提问者采纳