Related Clues:

• 'B-o-r-r-r-ing!'
• Demonstrate disinterest
• 'Bo-ring!'
• [Bo-o-o-ring!]
• Bedroom noise
• [Boring!]
• Dormitory disturbance
• Bored person
• [This couldn't be more boring]
• Ho-hum response
• Dagwood's "SKNXX-X"
• Wake a bedmate, maybe
• Pan sound
• Sleep audibly
• Be unwittingly annoying