Epworth Sleepiness Scale Calculator
Assess your level of daytime sleepiness using the Epworth Sleepiness Scale (ESS), a validated questionnaire used by sleep specialists worldwide. Rate your likelihood of dozing off in 8 common situations to get your sleepiness score.
The Epworth Sleepiness Scale was developed by Dr. Murray Johns at the Epworth Hospital in Melbourne, Australia in 1991. It has become the most widely used subjective measure of daytime sleepiness in clinical sleep medicine. The questionnaire asks you to rate the likelihood of falling asleep in 8 everyday situations on a scale of 0 to 3, producing a total score from 0 to 24.
Scores of 0-10 are considered normal, while scores above 10 indicate increasing levels of excessive daytime sleepiness. A score above 15 is highly suggestive of a significant sleep disorder such as obstructive sleep apnea, narcolepsy, or idiopathic hypersomnia. The ESS is often used as an initial screening tool to determine whether a formal sleep study (polysomnography) is warranted.
This calculator is for educational and screening purposes only. It is not a diagnostic tool. Excessive daytime sleepiness can have many causes including insufficient sleep, sleep disorders, medications, depression, and medical conditions. If your score suggests excessive sleepiness, consult a healthcare provider or sleep specialist for proper evaluation.