Related Clues:

• Keep others awake at night, maybe
• It's often made to get attention
• Sleep threatener
• Loud sound
• Keep your bedmate up, maybe
• Feature of city life
• Cause of a rude awakening?
• Nap noise
• Something boring
• It might keep you up
• It takes your breath away
• Stoppage of breath
• Library taboo
• Signal disturbance
• Babbling, e.g.