Delayed/Advanced Sleep Phase Syndrome
Do you find it difficult to fall asleep until well after midnight, yet are able to sleep a normal length of time if you don’t have to get up for work? Or, do you fall asleep too early in the evening and wake up too early in the morning? If so, your biological clock may be out of sync with your preferred sleep-wake schedule.
Someone with delayed sleep phase syndrome has sleep-onset and wake times that are later than desired, but little or no difficulty maintaining sleep once it has begun. Many adolescents, because of their neurophysiology as well as school and social schedules, suffer from this syndrome. (more…)
