Related Clues:

• Nod off
• Nod
• Nap
• Drop off
• Snooze
• Drift off
• Doze
• Be sleepy
• Doze off
• Sleep lightly
• Be half-asleep
• Not stay alert
• Start to nod off
• Feel sleepy, lose one's head, and might get worse at last
• Flirt with sleep