Related Clues:

• Count a few sheep
• Tennis ball feature
• Brief respite
• Be unaware of imminent danger
• Refresher, of a sort
• A few z's
• One way to miss a class or meeting
• Quick refresher
• Break on a cot
• Leather's fuzzy side
• Doze a bit
• Rug feature
• Preschooler's dread, sometimes
• When you're out for a while
• One way to revitalize