Related Clues:

• Alarm clock button
• You might miss your bus if you hit it too often
• Catch some Zs
• Siesta, say
• Take forty winks
• Buzzer-beating button
• Certain time-out
• Catch 40 winks
• A brief nap
• A short light sleep
• A short informal sleep
• An informal nap
• Ozone's what you need if you want forty winks
• One would shut one's eyes to the seepage coming from the poles
• Will it come out little by little from the poles if not wideawake?