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What is a non-24-hour sleep-wake disorder?

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Non-24-hour sleep-wake disorder (Non-24) is a circadian rhythm disorder and happens when your internal clock is not synched with light and dark cycles of the day and night. Most people who have it are totally blind. That's because your internal clock gets its cue from the light you see. But sometimes people who have normal vision get it.

When you have non-24, you may find yourself gradually going to bed later every night and waking up later each day.

SOURCES:

Circadian Sleep Disorders Network: "Non-24-Hour Sleep-Wake Disorder."

National Organization for Rare Disorders: "Non-24-hour sleep-wake disorder."

National Sleep Foundation: "What Is Non-24-Hour Sleep-Wake Disorder?" "Tips for Talking to Your Doctor About Non-24-Hour Sleep-Wake Disorder," "Sleep Drive and Your Body Clock."

National Institutes of Health: "Circadian Rhythms Fact Sheet."

Reviewed by Smitha Bhandari on May 20, 2018

SOURCES:

Circadian Sleep Disorders Network: "Non-24-Hour Sleep-Wake Disorder."

National Organization for Rare Disorders: "Non-24-hour sleep-wake disorder."

National Sleep Foundation: "What Is Non-24-Hour Sleep-Wake Disorder?" "Tips for Talking to Your Doctor About Non-24-Hour Sleep-Wake Disorder," "Sleep Drive and Your Body Clock."

National Institutes of Health: "Circadian Rhythms Fact Sheet."

Reviewed by Smitha Bhandari on May 20, 2018

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What is the cure for non-24-hour-sleep-wake disorder?

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