Idiopathic hypersomnia

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Idiopathic hypersomnia

Synonyms: Idiopathic excessive sleepiness

A rare neurologic disease characterized by an excessive daytime sleepiness with long and unrefreshing naps and/or prolonged and undisturbed nocturnal sleep impaired daytime alertness and/or sleep inertia (ie great difficulty in waking up after sleep) and where other causes have been excluded.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http: //www.orphadata.org. Data version September 2023.

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Idiopathic hypersomnia?

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Advocacy Organizations

FamilieSCN2A Foundation

We are an organization created by parents of children diagnosed with rare forms of Epilepsy and Autism as a result of a change in the SCN2A gene. Our vision is to find effective treatments and a cure for SCN2A related disorders. Our mission is to improve the lives of those affected by SCN2A related disorders through research, public awareness, family support and patient advocacy.

Clinical Trials

For a list of clinical trials in this disease area, please click here.