Treating chronic daytime sleepiness
Sophie is a 20-year-old university student of slim build with an eight-year history of significant daytime sleepiness.
Sophie describes falling asleep frequently when inactive, including on trams and in lectures. Her total sleep time is decreased with an average of between five and seven hours. Sophie described often going to bed between midnight and 2am, and waking for lectures between 8am and 10am.
No features of cataplexy or nocturnal hallucinations were present on history; however, Sophie did describe two episodes of being unable to move on waking which lasted up to a