他每天十一点以后才睡觉。

Tā měitiān shíyī diǎn yǐhòu cái shuìjiào.

He only goes to sleep after eleven o’clock every day.

我今天很累，想早一点睡觉。

Wǒ jīntiān hěn lèi, xiǎng zǎo yìdiǎn shuìjiào.

I’m very tired today and want to go to sleep a bit early.

宝宝已经睡觉了，我们小声一点。

Bǎobao yǐjīng shuìjiào le, wǒmen xiǎoshēng yìdiǎn.

The baby is already sleeping; let’s speak more quietly.