1. Stanford/VA Alzheimer’s Center, Palo Alto, California;
2. Sierra Pacific VA (VISN 21) Mental Illness Research, Education and Clinical Centers, Palo Alto, California;
3. Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California;
4. The Sound Sleep Project, Baltimore, Maryland;
5. Uniformed Services University of the Health Sciences, Bethesda, Maryland;
6. Walter Reed Army Institute of Research, Silver Spring, Maryland