You’re not alone. Both insomnia and depression are surprisingly common complaints. About 15% of adults suffer from chronic insomnia. Nearly as many suffer occasional bouts of depression.
Depression often go hand-in-hand. Although just 15% of people with depression sleep too much, as many as 80% have trouble falling asleep or staying asleep. Patients with persistent insomnia are more than three times more likely to develop depression.
The relationship between depression is far from simple, however. “Until recently, depression was typically seen as a symptom of depression,” says Michael L. Perlis, MD, an associate professor of psychiatry and director of the Behavioral Sleep Medicine Program at the University of Pennsylvania. “Treat the underlying depression, the thinking went, and sleep problems would go away.”