Related Clues:
- Look bored
- Make some noise in bed
- Annoying night sound
- React with boredom
- 'How boring!'
- Rumble in the night
- Sheet music?
- Sleeper's noise
- It becomes rude if you don't use your hand
- It might wake you up
- Make noise in bed
- Display boredom, in a way
- Produce Zs
- Sleep interruption
- In comics, it's represented by a string of Z's