Interim NIOSH Training for Emergency Responders: Reducing Risks Associated with Long Work Hours

How Our Sleep System Works
  • Understanding our sleep system can help you improve your sleep and alertness during deployment
  • Humans are “hard-wired” for sleeping during the night and for being active during the day
  • Researchers note that sleep regulation has two components:
    • Build-up of sleep pressure drive
    • Circadian rhythms
  • These two components work together to determine
    • When you go to sleep
    • When you wake up
    • How well you feel when you are awake

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Page last reviewed: April 1, 2020