Related Clues:

• Nocturnal din
• Source of spousal angst, nocturnally
• Make noises while napping
• Make sound asleep?
• 'Gawwwd, how boring'
• "Gawwwd, how boring"
• Sleeper's rumble
• ''Zzzzzz'' sound
• [Bo-o-o-oring!]
• Noisome noise
• Sleep loudly
• Critic's word for a boring show
• Dozer's din
• Annoy a bedmate
• Sleep lab phenomenon