8 sentences

1. 他这么困不是他的错。

   tā zhè​me kùn bù​shi tā de cuò.

   It's not his fault that he's so sleepy.

   Source: AI Challenger 2017

2. 我怎么突然这么困？

   wǒ zěn​me tū​rán zhè​me kùn?

   Why do I feel so sleepy all of a sudden?

   Source: OpenSubtitles

3. 我只是很困而已。

   wǒ zhǐ​shì hěn kùn ér​yǐ.

   I'm just sleepy.

   Source: OpenSubtitles

4. 你是不是困了？

   nǐ shì​bu​shì kùn le?

   Are you sleepy?

   Source: OpenSubtitles

5. 怎么这么困呢？

   zěn​me zhè​me kùn ne?

   Why am I so sleepy?

   Source: OpenSubtitles

6. 这药你吃了犯困吗？

   zhè yào nǐ chī le fàn kùn ma?

   Does this medicine make you drowsy?

   Source: AI Challenger 2017

7. 他好像很困倦。

   tā hǎo​xiàng hěn kùn​juàn.

   He seems to be very sleepy.

   Source: Tatoeba

8. 过度的困倦会让你觉得自己错过了生活。

   guò​dù de kùn​juàn huì ràng nǐ jué​de zì​jǐ cuò​guò le shēng​huó.

   Excessive sleepiness can make you feel like you are missing out on life.

   Source: CCMatrix