Dr. Sarah Gray is an Instructor of Psychology for Harvard Medical School, a Psychologist in the Department of Psychiatry at Massachusetts General Hospital, and a Clinical Health Psychologist and Co-Director of the Behavioral Sleep Medicine program with the BMED Department at Massachusetts General Hospital, where she provides Behavioral Sleep Medicine services for patients, and trains and supervises the Harvard Medical School/MGH Psychology interns and fellows in Behavioral Sleep Medicine. Fo ...

Samuel Kohlenberg, PhD is a Clinical Psychophysiologist, Licensed Professional Counselor, and Behavioral Health Educator in Denver, Co.