Light from the window or your phone can interrupt sleep — as can more surprising factors, such as your bedtime reading habits.
Deirdre Conroy, Ph.D.
Deirdre Conroy, Ph.D., is a clinical associate professor and clinical director of the University of Michigan Behavioral Sleep Medicine Clinic. Her clinical interests are cognitive behavioral therapy for all sleep disorders but she specializes in insomnia. Dr. Conroy researches the relationship between sleep disturbance and psychiatric disorders.