1. Helsinki Sleep Clinic Vitalmed Research Center Helsinki Finland
2. Department of Clinical Neurosciences Clinicum University of Helsinki Helsinki Finland
3. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
4. Norwegian Competence Center for Sleep Disorders Haukeland University Hospital Bergen Norway
5. ZK Schlafcoaching Medical University Vienna Vienna Austria
6. Institute for Consciousness and Dream Research Vienna Austria
7. Department of Anesthesiology and Pain Medicine University Health Network and University of Toronto Toronto Canada
8. Interdisciplinary Sleep Medicine Center Charité – Universitätsmedizin Berlin Berlin Germany
9. Sleep and Circadian Neuroscience Institute Nuffield Department of Clinical Neurosciences University of Oxford Oxford UK
10. Centre d’étude des troubles du sommeil École de psychologie, Institut universitaire en santé mentale, Centre de recherche CERVO Université Laval Quebec QC Canada