American Psychological Association: “Anxiety.”
Anxiety and Depression Association of America: “Sleep Disorders.”
Cleveland Clinic: “Insomnia,” “Common Sleep Disorders,” “Sleep,” “Somniphobia (Fear of Sleep).”
Sleep Foundation: “Anxiety and Sleep.”
Dialogues In Clinical Neuroscience: “Sleep and Anxiety Disorders.”
Mayo Clinic: “Anxiety Disorders,” “Insomnia treatment: cognitive behavioral therapy instead of sleeping pills.”
National Heart, Lung, and Blood Institute: “What is Insomnia?”
The University of Tulsa Kendall College of Arts and Sciences: “Exposure, Relaxation, and Rescripting Therapy (ERRT).
Sudden Cardiac Arrest Foundation: “Worried About Dying in Your Sleep?”
Traci Coulter, public relations executive, New York.
Alexander Obolsky, MD, psychiatrist and assistant professor of clinical psychiatry, Northwestern University Medical School, Chicago.
Matthew Edlund, MD, director, Center for Circadian Medicine, Sarasota, FL; author, The Power of Rest.
Shelby Harris, PsyD, director, Behavioral Sleep Medicine Program, Montefiore Medical Center’s Sleep-Wake Disorders Center, New York.
Joni Aldrich, CEO, Cancer Lifeline Publications, Winston-Salem, N.C.