1. Sleep-Wake Disorders Unit, Department of Neurology, Gui-de-Chauliac Hospital , Montpellier , France
2. National Reference Centre for Orphan Diseases, Narcolepsy, Idiopathic Hypersomnia, and Kleine-Levin Syndrome , Montpellier , France
3. INM, Univ Montpellier, INSERM , Montpellier , France