Università degli Studi di Genova, University of Genoa, University of Genoa, IRCCS Ospedale Policlinico San Martino, IRCCS Ospedale Policlinico San Martino, IRCCS Ospedale Policlinico San Martino, Universidad de Barcelona - Sleep Disorders Center, Universidad de Barcelona - Hospital Clínic Barcelona, Universidad de Barcelona - Hospital Clínic Barcelona, University of Barcelona, University of Barcelona, University of Barcelona, University of Barcelona, University of Barcelona, University of Rome Tor Vergata, University of Rome Tor Vergata, University of Rome Tor Vergata, University of Rome Tor Vergata, Charles University, Charles University, Charles University, Charles University, Mayo Clinic, Mayo Clinic, Mayo Clinic - College of Medicine and Science, Dokkyo Medical University, Dokkyo Medical University, Universita di Cagliari, Universita di Cagliari, Universita di Cagliari, University of Oxford, University of Oxford, Hospital St. Hedwig of the Order of St. John, Hospital St. Hedwig of the Order of St. John, Clinique Beau Soleil - Pôle Sommeil et Neurologie, University of Montpellier, University of Bologna, University of Verona, IRCCS Istituto delle Scienze Neurologiche di Bologna (ISNB), IRCCS Mondino Foundation Pavia, Salvatore Maugeri Foundation IRCCS, Pavol Jozef Šafarik University, University of Geneva, University of Geneva, University of Geneva, Hospital San Raffaele Cassino, AOU Città della Salute e della Scienza di Torino, University of Genoa, University of Genoa and University of Genoa