瞌睡虫

1. • mythological insect that makes people doze off
2. • drowsiness

     fig.

3. • person who loves sleeping

     coll.

4. • sleepaholic

Character by character

• 瞌(kē)
• 睡(shuì)sleep
• 虫(chóng)lower form of animal life, including insects, insect larvae, worms and similar creatures