Sleep-wake schedule disorder

The more common sleep phase disorder is delayed sleep phase, where sleep occurs later each day. In advanced sleep phase disorder, the tendency to sleep arrives earlier each day.

Researchers in the USA have shown that in the absence of an alarm clock people will sleep longer by up to two hours.

1. Symptoms of nervous system diseases
2. Sleep disorders

1. Sudden unexpected infant death (SUID)
2. Desynchronization of bodily rhythm by international travel

1. Sleep deprivation

1. Temporal imperialism
2. Limited leisure time

1. Circadian dysrhythmia

1. Order
2. Disturbance
3. Disorder