1 Lyon Neuroscience Research Center (CRNL), Waking Team, Inserm UMRS 1028, CNRS UMR 5292, Université Claude Bernard Lyon 1, Université de Lyon, 69000 Lyon, France.
2 Centre for Public Health Research, Massey University, Wellington 6140, New Zealand.
3 Department of Sleep and Human Factors Research, Institute of Aerospace Medicine, German Aerospace Center (DLR), 51170 Cologne, Germany.
4 Faculty of Medicine, University of Bonn, 53127 Bonn, Germany.
5 Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA.
6 Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA 02115, USA.