Founder and President, Sleepwell Consultants Dr. Donn Posner is a leading expert in cognitive behavioral therapy for insomnia (CBT-I) and one of the field's most active educators. He is founder and president of Sleepwell Consultants and an adjunct clinical associate professor in the Department of Psychiatry and Behavioral Sciences at the Stanford University School of Medicine, and he previously spent twenty-five years as director of behavioral sleep medicine for the Sleep Disorders Center of Lifespan Hospitals. He is co-author of Cognitive Behavioral Therapy for Insomnia: A Session-by-Session Guide, one of the most widely used CBT-I training guides worldwide.

Dr. Posner has reported consultation work with Ceragem, Brain Train LTD, and Playpower Labs, as well as founding Hypknowledge. This article was reviewed by Dr. Carlat, President and Founder of Carlat Publishing, who has concluded that there is no evidence of commercial bias in this educational activity.