Advanced sleep phase disorder is a rare condition that causes your natural circadian rhythm, or sleep-wake cycle, to occur earlier than typical. As humans, our sleep-wake cycle— also known as ...

Advanced sleep phase syndrome is essentially the opposite of delayed sleep phase syndrome. Those who experience it find that it becomes difficult to engage in evening activity because they have a ...

Delayed sleep phase syndrome is often misdiagnosed because it can have similar symptoms to other sleep disorders. "In general the diagnosis is more of a questionnaire type diagnosis," said Figueiro.

Italian researchers have presented a case study of pediatric advanced sleep-wake phase syndrome in a 4-year-old girl. Autosomal dominant forms of this syndrome due to loss-of-function mutations in the ...

“Melatonin has been shown to cause improvement in certain children with certain sleep disorders, such as delayed sleep phase disorder and circadian rhythm disorders," said Dr. Nilong Vyas.