Related Clues:

• Make a little 'night music'
• Sack sound
• 'Zzzzzz ...'
• Cause for earplugs
• [How boring!]
• Napper's noise
• Dormitory annoyance
• Sign of boredom
• Siesta sound
• Breathe stertorously
• Prove you are asleep
• Dorm annoyance
• Saw wood at night?
• Annoying night noise
• Saw wood