ESSUsual stateAbout 2 minutes 👥 No usage yetSource: Johns MW (1991)

Epworth Sleepiness Scale

The ESS assesses excessive daytime sleepiness across 8 everyday situations with a total score of 0–24. It is commonly used to screen for OSA and narcolepsy.

What this scale measuresThe ESS estimates your chance of dozing off across 8 everyday situations (reading, watching TV, riding in a car, lying down after lunch, etc.), screening for excessive daytime sleepiness. It is the international standard for supporting screening for obstructive sleep apnea (OSA) and narcolepsy.
How to read your score
  • Normal0 – 6

    Your daytime sleepiness is within the normal range.

  • Mild sleepiness7 – 10

    You have mild daytime sleepiness. Consider sleep quality and duration.

  • Significant sleepiness11 – 24

    Your daytime sleepiness is significant and may be related to sleep-disordered breathing or narcolepsy. Please see a doctor.

These ranges are for screening reference only and cannot replace a professional diagnosis.

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Important: This result is for self-screening only

All scales on this site are publicly available academic screening tools, not medical devices, and do not constitute a clinical diagnosis. Results are affected by mood, routine, environment, and physical condition.

  • Scale results cannot be used as the sole basis for diagnosis, medication, treatment, or prescription.
  • Do not self-diagnose or self-medicate based solely on scale scores.
  • If you have physical, mental, sleep, or emotional concerns, please consult a qualified healthcare provider.

Users assume full responsibility for any medical or wellness decisions based on these results.