vigilance« Back to Glossary IndexVigilance refers to the state of being alert and attentive. Related Articles: Treatment for Idiopathic Hypersomnia & NarcolepsyAsk the Doctor: Is There a Link Between Albinism and Idiopathic Hypersomnia (IH)?FAQs About Flumazenil AccessWhat’s New in the Diagnosis and Treatment of Hypersomnia in 2016?Share Your Journey | I Will Not Go Gentle into That Night