Sleep-wake cycle disturbance

What it means

Any abnormality of an individual's circadian rhythm that affects the timing of sleeping and being awake is referred to as a sleep-wake disorder.

Often, patients complain of insomnia when their desired sleep-wake cycle is inconsistent with their intrinsic rhythms.

Rare diseases that can present with this17

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Internal-clock disorders · Sleep phase disturbance · Sleep-wake cycle disorders · Sleep-wake mistiming