Related Clues:

• Nappers catch them
• Two pieces of pizza?
• Sleep, so to speak
• Couple of pizzas?
• Ten-point draws in Scrabulous (R.I.P.)
• Jazz duo?
• Sleep indicators
• Jazz duet?
• Encyclopedia's end
• Pieces of pizza?
• Puzzle center?
• Zuider and others
• They follow exes and wyes
• Things to catch
• They're generally caught at night