HSK 2
Nàozhōng xiǎng le, gāi qǐchuáng le.
The alarm went off, time to get up.
HSK 7-9
Wǒ shè le zǎoshang liù diǎn de nàozhōng.
I set an alarm for six in the morning.
HSK 7-9
Tā guāndiào le nàozhōng yòu shuìzháo le.
He turned off the alarm and fell asleep again.