

14Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italyīackground: Insomnia is the most commonly reported sleep problem in industrialized countries worldwide being present in about 36.8% of the general population.13Child Neuropsychiatry, IRCCS Istituto G.12Department of Neuroscience (DINOGMI), University of Genoa, Genoa, Italy.11Department of Psychiatry, UOP 25 ASST-Parma, Parma, Italy.10IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.

9Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy.8Department of Neuroscience, ASST Fatebenefratelli Sacco, Milan, Italy.7Department of Biomedical and Specialty Surgical Sciences, Institute of Psychiatry, University of Ferrara, Ferrara, Italy.6Department of Neuroscience, Mental Health, and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, Sant'Andrea University Hospital, Sapienza University, Rome, Italy.5IRCCS Ospedale Policlinico San Martino, Genoa, Italy.4Section of Psychiatry, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy.3Department of Experimental and Clinical Medicine, Psychiatric Clinic University Hospital “Gaspare Rodolico”, University of Catania, Catania, Italy.2Unit of Sleep Medicine and Epilepsy, IRCCS Mondino Foundation Pavia, Pavia, Italy.1Psychiatry Division, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.Laura Palagini 1*, Raffaele Manni 2, Eugenio Aguglia 3, Mario Amore 4,5, Roberto Brugnoli 6, Paolo Girardi 6, Luigi Grassi 7, Claudio Mencacci 8, Giuseppe Plazzi 9,10, Antonino Minervino 11, Lino Nobili 12,13 and Giovanni Biggio 14
