The essential symptom is excessive daytime sleepiness (EDS), which means that you get overcome by an irresistible need to sleep during the day, and you can feel tired all the time. EDS is usually the first symptom that people notice.
Although narcolepsy is often thought of as an adult condition, symptoms most commonly start in childhood or adolescence. Symptoms can look and feel different in children than in adults. Take a look at each symptom below to find out how these symptoms can appear in children and adults.
EDS is not the only symptom. Learn about all 5 major symptoms of narcolepsy: