<P> Working the evening or night shift, or working at home, makes DSPD less of an obstacle for some . Many of these people do not describe their pattern as a "disorder". Some DSPD individuals nap, even taking 4--5 hours of sleep in the morning and 4--5 in the evening . DSPD - friendly careers can include security work, the entertainment industry, hospitality work in restaurants, theaters, hotels or bars, call center work, manufacturing, emergency medicine, commercial cleaning, taxi or truck driving, the media, and freelance writing, translation, IT work, or medical transcription . Some other careers that have an emphasis on early morning work hours, such as bakers, coffee baristas, pilots and flight crews, teachers, mail carriers, waste collection, and farming, can be particularly difficult for people who naturally sleep later than is typical . Some careers, such as over-the - road truck drivers, firefighters, law enforcement, nursing, can be suitable for both people with delayed sleep phase syndrome and people with the opposite condition, advanced sleep phase disorder, as these workers are needed both very early in the morning and also late at night . </P> <P> Some people with the disorder are unable to adapt to earlier sleeping times, even after many years of treatment . Sleep researchers Dagan and Abadi have proposed that the existence of untreatable cases of DSPD be formally recognized as a "sleep - wake schedule disorder (SWSD) disability", an invisible disability . </P> <P> Rehabilitation for DSPD patients includes acceptance of the condition and choosing a career that allows late sleeping times or running a home business with flexible hours . In a few schools and universities, students with DSPD have been able to arrange to take exams at times of day when their concentration levels may be good . </P> <P> Patients suffering from SWSD disability should be encouraged to accept the fact that they suffer from a permanent disability, and that their quality of life can only be improved if they are willing to undergo rehabilitation . It is imperative that physicians recognize the medical condition of SWSD disability in their patients and bring it to the notice of the public institutions responsible for vocational and social rehabilitation . </P>

Why is it easier for me to sleep during the day