He gets ratty if he doesn't get enough sleep.

他要是睡眠不足动不动就发脾气。

《牛津词典》

Enough sleep is important to us.

充足的睡眠对我们很重要。

youdao

Enough sleep helps the brain and body grow.

充足的睡眠有助于大脑和身体的发育。

youdao

At the time, scientists believed that a person at the top of the mountain would only have enough oxygen to sleep.

VOA: special.2010.06.30

You just don't get enough sleep!

你就是会睡眠不足！

苦中有乐的学习 - SpeakingMax英语口语达人

Without enough sleep, you'll act like you have ADD whether or not you have it.

NPR: Excerpt: 'Delivered from Distraction'

Maybe you are more creative if you get enough sleep and spend time with your family.

FORBES: 3 Tips For Women Who Want It All: Career, Family And Freedom

Enough sleep is the amount of sleep that allows you to wake up without an alarm clock.

NPR: Excerpt: 'Delivered from Distraction'