Irregular sleep-wake rhythm disorder

Definition

Irregular sleep-wake rhythm disorder is characterised by absence of a clearly-defined cycle of sleep and wake. Sleep becomes distributed in multiple episodes of variable duration throughout the 24-hour period. Patients typically complain of insomnia and/or excessive daytime sleepiness as a result of the condition. The symptoms should have persisted for at least several months and result in significant distress or mental, physical, social, occupational or academic impairment.

Inclusions

• irregular sleep-wake pattern

Also indexed as

Nearby in Circadian rhythm sleep-wake disorders

• 7A60Delayed sleep-wake phase disorder
• 7A61Advanced sleep-wake phase disorder
• 7A63Non-24 hour sleep-wake rhythm disorder
• 7A64Circadian rhythm sleep-wake disorder, shift work type
• 7A65Circadian rhythm sleep-wake disorder, jet lag type
• 4B4ZDiseases of the immune system, unspecified