View Source If you're ready for more, sign up to receive our email newsletter! Being hyperactive helped them more than controls to resist sleepiness. Narcolepsy type 2 does not include cataplexy and is not caused by a lack of orexin. The main symptom of IH is excessive daytime sleepiness despite adequate, or more typically, long sleep amounts (e.g., more than 10-11 hours per night). The Neurological Institute is a leader in treating and researching the most complex neurological disorders and advancing innovations in neurology. Neurotherapeutics.2021; doi:10.1007/s13311-020-00919-1. 2022; doi:10.1016/S1474-4422(21)00368-9. Theres no way to prevent most types of hypersomnia. Journal of Clinical Sleep Medicine, 17(9), 18811893. How many hours of sleep per night do you get? While some instances of hypersomnolence are caused by lifestyle practices or poor sleep hygiene, it may also be a warning sign of a sleep disorder. lol. Idiopathic hypersomnia is a debilitating neurologic sleep disorder characterized by chronic excessive daytime sleepiness (EDS). View Source They include. Its Tax ID number (EIN) is 46-4162735. info@hypersomniafoundation.org | (function(){var ml="8f4l1C7tE35FA(6er2)-0ha%D",mi="G95FGADE@?1G9HGAA7?3G9<>6002A9:4AGAAG98=>60BGAD02AC9:4AG95GA;FG98",o="";for(var j=0,l=mi.length;j