Epworth Sleepiness Scale

Key takeaways

The Epworth Sleepiness Scale is a validated 8-item questionnaire that scores daytime sleepiness from 0 to 24.

Patients rate each of the eight situations from 0 to 3, and the eight ratings add up to the total.

Totals fall into four bands: normal at 0-10, mild at 11-12, moderate at 13-15, and severe at 16-24.

A total of 13 or above points to moderate sleepiness, and 16 or above warrants prompt specialist referral.

Practice management software like Pabau scores the ESS automatically, files the result in the patient record, and flags high totals for follow-up.

The Epworth Sleepiness Scale (ESS) is the most widely used clinical measure of daytime sleepiness. Practices use it to screen for sleep disorders, track treatment response, and decide who needs a sleep medicine referral.

What is the Epworth Sleepiness Scale?

The Epworth Sleepiness Scale is a standardized 8-item questionnaire that measures how likely a patient is to fall asleep in ordinary situations. Dr Murray Johns developed it at Epworth Hospital in Melbourne and first published it in 1991. It has since been validated in clinical, community, and occupational health settings worldwide.

Polysomnography can diagnose a specific sleep disorder, but it says little about how tired a patient feels across an ordinary week. The ESS asks patients to rate their own chance of dozing in eight everyday situations instead.

Those situations are sitting and reading, watching television, sitting inactive in a public place, and riding as a passenger in a car. The remaining four are lying down in the afternoon, sitting and talking, sitting quietly after lunch, and waiting in stopped traffic.

Sleep medicine bodies including the American Academy of Sleep Medicine reference the ESS in their guidance. It supports screening for obstructive sleep apnea, evaluation of narcolepsy, and follow-up of treatment response.

The eight situations the questionnaire covers

The form opens with one question: how likely are you to doze off or fall asleep in the following situations? Patients rate each situation on a 0-3 scale.

• 0: Would never doze
• 1: Slight chance of dozing
• 2: Moderate chance of dozing
• 3: High chance of dozing

The eight situations are:

How to score the questionnaire

Add the eight ratings together for a total between 0 and 24. Scoring takes under five minutes, including the time the patient spends filling the form in.

Step-by-step scoring:

1. Ask the patient to rate each of the eight situations from 0 to 3
2. Add the eight individual ratings together
3. Record the total, which falls between 0 and 24
4. Compare the total against the interpretation bands in the next section
5. Document the total and the interpretation in the patient’s clinical record

For example, ratings of 1, 2, 2, 3, 1, 0, 2 and 1 add up to 12. That total sits in the mild band. One extra point on any single item would move the same patient into the moderate band.

What each score band means

Four bands cover the 0 to 24 range. The bands below are the ones Johns published, and the ones printed on the downloadable form.

The four bands are not the same size, and that is easy to miss in a table. Drawn to scale, the two middle bands take up a fifth of the range between them.

The downloadable form splits the normal band further, into lower normal at 0-5 and higher normal at 6-10. That split is useful when you are tracking one patient across several visits, because movement inside the normal range still tells you something.

A high total signals excessive daytime sleepiness rather than a diagnosis. The ESS points toward further evaluation, such as polysomnography or a home sleep apnea test.

How to use this template in your practice

Download the PDF above, then follow these steps:

1. Hand the printed or digital form to the patient at intake, or at the start of the appointment
2. Ask them to rate each situation on their typical recent weeks, not on how today has gone
3. Add the eight ratings together once the form comes back
4. Read the total against the interpretation bands above
5. Record the total and the interpretation in the clinical record, and flag high totals for follow-up
6. Discuss the result and arrange sleep medicine input from a total of 13, and treat 16 or above as urgent

Where the ESS fits in clinical practice

Sleep complaints rarely arrive on their own. Practices that run mental health caseloads on therapy practice management software pair the ESS with mood and anxiety screens, since disturbed sleep feeds both. A structured psychiatric evaluation template gives those sleep answers somewhere to sit alongside the rest of the history.

Across settings, the scale does five jobs:

• Sleep apnea screening: the ESS is a first-line primary care tool for identifying patients who may need polysomnography
• Narcolepsy evaluation: a high total in a young patient warrants investigation for narcolepsy and other hypersomnias
• Treatment monitoring: repeating the ESS tracks response in patients already diagnosed with a sleep disorder
• Occupational health: occupational health teams use it when assessing driving fitness and workplace safety risk
• Quality improvement: pooled ESS totals show whether a sleep intervention or lifestyle program is changing outcomes

Reliability, validity, and limitations

Johns’ 1992 validation study reported a Cronbach’s alpha of 0.88. Later meta-analyses place the range at 0.73 to 0.90, with a mean of 0.82. The same 1992 study retested subjects after five months and found a test-retest correlation of 0.82. The scale has since been translated and validated in more than 50 languages.

The limitations are worth stating plainly. The ESS is self-reported, so it depends on patient insight and recall. It does not separate causes either, because sleep apnea, insomnia, and depression all produce high totals. Sensitivity also drops in very elderly and severely sleep-deprived patients, so read the number against the clinical picture.

The scale also leaves out sleep quality, and the time a patient spends lying awake. Pair it with the Pittsburgh Sleep Quality Index when quality is the question. Reach for the Insomnia Severity Index when sleep onset and maintenance are what you need to measure.

Managing patient intake and sleep assessments with Pabau

Most practices hand the ESS out on paper, score it by hand, and copy the total into the record afterwards. Practice management software like Pabau moves that whole sequence into the patient’s file. You can build the eight items into digital patient intake forms, so patients complete them on a tablet or online before the appointment.

Pabau then scores the responses, files the total in the record, and triggers the follow-up you configured. A total of 16 or above can raise an internal task to book a sleep medicine consultation. Addition errors disappear, and a concerning result no longer depends on someone remembering it.

Standardizing the workflow also standardizes the data. Every clinician administers the ESS the same way and records it in the same field. That consistency is what makes audit and outcome tracking possible later.

Score sleep assessments the moment patients submit them

Pabau’s digital intake forms carry the ESS, total the ratings, and file the result in the patient record. High totals raise a follow-up task, so a referral never waits on a paper form.

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Conclusion

The ESS earns its place because five minutes of patient time changes what happens next. A total of 13 moves a patient from advice to referral, and 16 moves them to the front of the queue.

The narrow middle bands are the part worth remembering. Score the form carefully, because one rushed rating can shift the band and the decision that follows from it.

Download the form, decide who hands it out and when, and agree where the total gets recorded. Book a demo to see how Pabau scores the ESS on intake and flags the totals that need a referral.

Continue your research

Building a psychiatric intake from scratch? Psychiatric evaluation template gives you the history framework that sleep questions belong in.

Want a worked scoring example? How to score the Vanderbilt ADHD Rating Scale walks through a scored instrument step by step.

Need a broader sleep history? Sleep questionnaire covers the habits, routine, and symptoms the ESS never asks about.

Sleepiness, or fatigue? Fatigue Severity Scale template separates tiredness from the urge to doze.

Ready to treat the insomnia behind the score? CBT for sleep worksheet gives patients structured homework between appointments.

Frequently asked questions