1. Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts;
2. Institute for Social Science Research and
3. School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Queensland, Australia;
4. Department of Medicine, Yale University School of Medicine, New Haven, Connecticut;
5. Department of Medicine, Center for Sleep and Cardiovascular Outcomes Research, and
6. Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania