Related Clues:

• Unwelcome audience participation
• Make racous nocturnal sound
• Make raucous nocturnal noise
• Raucous sound while sleeping
• Make raucous nasal sound during sleep
• Breathe noisily during sleep
• Sound asleep
• Sleeping noise
• Sound sleeper's sleep sound?
• Annoy a bedmate, maybe
• Nighttime disturbance, at times
• Large bore
• Result of soft-palate vibration
• Nocturnal noise
• [So boring!]