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Restful Rhythms and Sleep Science is a medium crossword puzzle with 20 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Restful Rhythms and Sleep Science
Moderate difficulty suitable for most players
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Across
  • 1. Hormone that regulates the sleep-wake cycle
  • 2. Difficulty in falling or staying asleep
  • 4. Sleep phase associated with vivid dreams
  • 5. Accessory used to block noise for sleeping
  • 7. Common alternative place for a nap
  • 8. Mental tension that can disrupt sleep
  • 11. Scheduled hour to go to sleep
  • 13. Involuntary deep breath signaling tiredness
  • 17. Environmental factor affecting melatonin release
  • 18. Feeling sleepy but not yet asleep
Down
  • 3. Mental images experienced during REM sleep
  • 6. 24-hour internal body clock regulating sleep
  • 9. To briefly sleep again after waking
  • 10. Short daytime sleeps to boost alertness
  • 12. Comfortable and warm atmosphere for rest
  • 14. Person who is currently asleep
  • 15. Device that wakes you up at a set time
  • 16. State conducive to falling asleep easily
  • 19. Organs benefiting from deep rhythmic breathing during rest
  • 20. Environmental condition ideal for deep sleep
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