Circadian Sleep Disorders

There are six circadian sleep disorders in total. Four of those are Chronic and two are Transient.

Chronic Sleep Disorders:

Chronic sleep disorders are due to internal “wiring” in the brain.

1. delayed sleep-phase
2. non-24-hour
3. advanced sleep-phase
4. irregular

Transient Sleep Disorders:

Transient sleep results from external changes in schedule.

1. shift work disorder
2. jet lag