Dr. Grandner is a Clinical Psychologist Certified in Behavioral Sleep Medicine, Director of the Sleep and Health Research Program, Director of the Behavioral Sleep Medicine Clinic, and Assistant Professor of Psychiatry, Psychology and Medicine at the University of Arizona.

His research focuses on how sleep is related to cardiovascular disease, diabetes, weight gain, cognitive function, mental health, and longevity. Dr. Grandner bridges population-level and laboratory approaches to develop a real-world understanding of the implications of poor sleep and practical strategies for improving sleep.