Related Clues:

• Light sleep
• One way to miss part of a movie
• Sleep lightly
• Have a siesta
• Go out for a while
• Quick snooze
• One way to miss a performance
• React to a dull sermon, perhaps
• Fall asleep
• Be inattentive
• Grab forty winks
• Start to drowse
• Nap (with "off")
• React to boredom, perhaps
• Go out for a while?