Related Clues:

• Virgil called it a gift of heaven
• Doctor's advice
• Huge amount
• Bar that isn't alarming
• Nap in Oaxaca
• What's left over
• Word with bed or head
• Midday nap
• Fast break?
• Catch a few Z's
• Clock-radio button
• Slumber
• No longer work
• Catnap
• Pause that refreshes