Mental Health & Substance Use

Insomnia

What does Insomnia mean?

Persistent difficulty falling asleep, staying asleep or obtaining restorative sleep despite adequate opportunity.

U.S. National Library of Medicine
Understanding Medical Words ↗ National Cancer Institute
Cancer Terms Dictionary ↗ CDC
Vaccine Glossary ↗

This is a plain-language Healthway explanation, not an individual diagnosis. The meaning of a term can change with the clinical context in which it appears.