https://www.healthcentral.com/slideshow/your-24-hour-sleep-cycle-explained
Sleep Disorders

Your 24-Hour Sleep Cycle Explained

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Man sleeping in bed near his alarm clock.
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Woman waking up and stretching.
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6 a.m. to 9 a.m.


Productive meeting in an office.
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9 a.m. to Noon


Woman falling asleep at her desk.
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Noon to 3 p.m.


Man exercising in a gym.
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3 p.m. to 6 p.m.


Friends toasting at dinner.
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6 p.m. to 9 p.m.


Woman woodworking at night.
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9 p.m. to Midnight


Woman struggling to stay awake while working at night.
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Midnight to 3 a.m.


Woman sleeping soundly at night.
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3 a.m. to 6 a.m.


Man sleeping while holding his alarm clock.
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Adjusting your cycle


Martin Reed

Martin Reed

@insomniacoach

Martin is the creator of Insomnia Coach, an eight-week course that combines online sleep education with individual sleep coaching. His course helps clients improve their sleep so they can enjoy a better life with more energy and start each day feeling happy, healthy, rested, and refreshed. Martin also runs a free sleep training course that has helped over 5,000 insomniacs. He holds a master’s degree in health and wellness education and studied clinical sleep health at the University of Delaware.