Possible Clues:

• He's supposed to send youngsters off
• Typically happy adult who puts children to sleep
• Anaesthetist for Bedfordshire?
• Some barbiturates, and many a sleep-inducing agent
• Fairy who puts children to sleep
• 'Hansel and Gretel' role
• Who could send you to sleep? Chopin, perhaps
• "Candy-colored clown" in Roy Orbison's "In Dreams," with "the"
• Sleep inducer of a sort
• The guy of your dreams?