The delayed sleep phase syndrome is characterized by difficulty in falling asleep at a socially acceptable time of night and an inability to be easily aroused in the morning.
DSPD also known as DSPS ( delayed sleep-phase syndrome) is a circadian rhythm sleep disorder. DSPD affects hormonal and other daily rhythms, sleep timing and alertness on peak period, the core body temperature rhythm compared to the general population and relative to societal requirements. Persons having DSPD generally fall asleep some hours after midnight and have difficulty waking up in the morning. Probably have a circadian period a good deal longer than 24 hours.
Affected people often report that while they do not get to sleep until the early morning and they do fall asleep around the same time every days. And if the person donot have another sleep disorder such as sleep apnea in addition to delayed sleep-phase syndrome, The persons can sleep well and have a normal need for sleep and they find it very difficult to wake up in time for a typical school or work day. delayed sleep-phase syndrome is often misdiagnosed as primary insomnia or as a psychiatric condition DSPD can be treated or helped in some cases by careful daily dark therapy, sleep practices, light therapy and medications such as melatonin.
TThe major feature of these disorders is a misalignment between the patient's sleep pattern and the sleep pattern that is desired or regarded as the societal norm. Underlying problem of Most circadian rhythm sleep disorders is that the patient cannot sleep when sleep is needed or expected.
Treatment for delayed sleep-phase syndrome involves the following such as Good sleep habits, advancing the internal clock, light therapy etc.
Re-Timer device provides a Ultra Violet -free green light source shown in university trials to be the optimal wavelength to re-time the circadian rhythm, allowing you to achieve a sleep-wake routine that can solve delayed sleep-phase disorder.