1. Department of Psychology, Northwestern University , Evanston, IL , USA
2. Sleep, Tactical Efficiency, and Endurance Laboratory, Warfighter Performance Department, Naval Health Research Center , San Diego, CA , USA
3. Leidos, Inc. , San Diego, CA , USA
4. Commander, US Naval Surface Forces, Research, Assessment and Development Directorate , Coronado, CA , USA
5. Department of Psychiatry, Uniformed Services University of the Health Sciences , Bethesda, MD , USA