Formal:
* 睡觉 (shuì jiào): This is the most common and neutral way to say "go to sleep." It literally means "sleep."
* 休息 (xiū xi): This means "rest," and can be used as a polite way to say "go to sleep" in formal settings.
Informal:
* 睡 (shuì): This is a shortened version of "睡觉," and is commonly used among friends and family.
* 去睡 (qù shuì): This literally means "go sleep" and is a more direct way to say it.
* 睡覺去 (shuì jiào qù): This is another way to say "go to sleep," combining "sleep" and "go."
Example sentences:
* 你应该去睡觉了 (nǐ yīnggāi qù shuì jiào le): You should go to sleep. (Formal)
* 早点睡 (zǎo diǎn shuì): Go to sleep early. (Informal)
* 我要睡觉了 (wǒ yào shuì jiào le): I'm going to sleep now. (Neutral)
It's important to choose the right expression based on the situation and your relationship with the person you're speaking to.