1. School of Psychological Science and Health University of Strathclyde Glasgow UK
2. Psychology Department Swansea University Glasgow UK
3. Department of Epidemiology Erasmus MC University Medical Centre Rotterdam Netherlands
4. Sleep & Circadian Neuroscience Institute (SCNi) University of Oxford Oxford UK
5. The Maine Sleep Center Chest Medicine Associates Portland ME USA
6. Department of Psychiatry University of Michigan Ann Arbor MI USA
7. Department of Neurology Northwestern University Feinberg School of Medicine Chicago IL USA