Related Clues:

• Sleep
• Nap
• Forty winks
• Test
• Sack time
• Z's
• Sleep, informally
• Slangy sleep
• Informal sleep - close optic
• Slangy sleep with closed optic
• Slang sleep, literally described
• Just a wink of sleep
• *Z's
• They use preparation to induce sleep
• Sleep (slang)