1 Department of Psychiatry and Psychotherapy, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, 79104 Freiburg, Germany. Electronic address: kai.spiegelhalder@uniklinik-freiburg.de.
2 Department of Psychiatry and Psychotherapy, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, 79104 Freiburg, Germany.
3 Sir Jules Thorn Sleep and Circadian Neuroscience Institute, Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK.