Epworth Sleepiness Scale: Score Yourself & What It Means
How the Epworth Sleepiness Scale (ESS) works: rate 8 everyday situations, score 0–24, and find out whether your daytime sleepiness is normal, mild, moderate, or severe.
Feeling tired is one thing. Actually dozing off during the day — in a meeting, at a red light, mid-conversation — is another. The Epworth Sleepiness Scale (ESS) is the simple, clinically validated tool that tells the two apart by asking one question eight times: how likely are you to fall asleep here?
Score yourself
Rate your chance of dozing in each situation — not just feeling tired, but actually falling asleep.
Key takeaways
- The ESS rates 8 real-life situations from 0 (would never doze) to 3 (high chance of dozing).
- Totals run 0–24; 0–7 is normal, 8–9 mild, 10–15 moderate, and 16–24 severe daytime sleepiness.
- It measures your general tendency to fall asleep — not how tired you feel in the moment.
- Persistent scores of 11+ are worth discussing with a doctor, who may look for sleep apnoea or other causes.
How the Epworth scale is scored
For each of eight situations you rate how likely you'd be to doze off, on this scale:
| Chance of dozing | Points |
|---|---|
| Would never doze | 0 |
| Slight chance of dozing | 1 |
| Moderate chance of dozing | 2 |
| High chance of dozing | 3 |
The eight situations range from the obvious (lying down to rest in the afternoon) to the more telling (sitting and talking to someone, or stopped in traffic for a few minutes). Add the eight ratings for a total between 0 and 24.
What your score means
Epworth Sleepiness Scale: drag to interpret your score
A little more sleepiness than average — worth keeping an eye on your sleep habits.
What a high score might mean
The Epworth scale doesn't diagnose anything — it flags that something is disrupting your sleep or alertness. Common culprits behind a high score include:
- Obstructive sleep apnoea — repeated pauses in breathing that fragment sleep, often signposted by loud snoring and morning headaches.
- Insufficient or poor-quality sleep — the simplest and most common cause.
- Insomnia — paradoxically, chronic insomnia can leave you both wired at night and sleepy by day.
- Other causes — certain medications, depression, thyroid problems, or conditions like narcolepsy.
Myth
Feeling tired all the time is the same as a high Epworth score.
What to do next
Should you see a doctor about daytime sleepiness?
Is your Epworth score 16 or higher, or do you ever doze while driving?
Frequently asked questions
What is a normal Epworth Sleepiness Scale score?
What Epworth score means I should see a doctor?
Does a high Epworth score mean I have sleep apnoea?
What's the difference between sleepiness and tiredness?
Free interactive test · ~2 min
Take the Epworth Sleepiness Scale
Eight quick situations, one score. Find out whether your daytime sleepiness is normal or worth a closer look.
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References
This guide is educational and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified clinician about your individual circumstances.