Epworth Sleepiness Scale Calculator
Epworth Sleepiness Scale
Rate your chance of dozing in 8 common situations (0 = never, 1 = slight, 2 = moderate, 3 = high).
Formula
ESS Total = Σ(situation_score_i) for i = 1 to 8. Each situation scored 0-3. Normal: 0-10, Mild EDS: 11-12, Moderate: 13-15, Severe: 16-24.
Frequently Asked Questions
What is the Epworth Sleepiness Scale?
The ESS is a validated questionnaire developed by Dr. Murray Johns in 1991 that measures general daytime sleepiness. It asks how likely you are to doze off in 8 common daily situations, with scores from 0 to 24.
What does a high ESS score mean?
An ESS score above 10 indicates excessive daytime sleepiness that may be caused by sleep disorders such as obstructive sleep apnea, narcolepsy, or chronic sleep deprivation. Scores above 15 indicate severe sleepiness that significantly impairs daily function.
Should I see a doctor based on my ESS score?
If your score is above 10, consider consulting a sleep specialist. They may recommend a polysomnography (sleep study) to evaluate for conditions like sleep apnea. Excessive daytime sleepiness can also be a symptom of other medical conditions.