Prince of Wales Hospital - The Chinese University of Hong Kong, The Chinese University of Hong Kong, The Chinese University of Hong Kong, The Chinese University of Hong Kong, University of Helsinki - Helsinki University Central Hospital, Uppsala University - Department of Pharmaceutical Biosciences, University of Bergen - Norwegian Competence Center for Sleep Disorders, affiliation not provided to SSRN, Sapienza University of Rome - Department of Psychology, University of Montpellier, Medical University of Vienna, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Mississippi State University, affiliation not provided to SSRN, Tokyo Medical University, affiliation not provided to SSRN, National Center of Neurology and Psychiatry - Department of Clinical Laboratory, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Oxford, Université Laval, affiliation not provided to SSRN, University of Bologna, University of Helsinki - Department of Neurosciences and Li Chiu Kong Family Sleep assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong