Epworth Sleepiness Scale (ESS)

The Epworth Sleepiness Scale asks how likely a person is to doze off in eight everyday situations. Each scores 0 to 3, and the total, from 0 to 24, shows how sleepy they usually are in the daytime: above 10 is excessive sleepiness. See what each score range means and what to check next, then record the result with the free template.

  • Score bands explained
  • Recording template to copy
  • Two recorded examples

ESS result template

Free
EPWORTH SLEEPINESS SCALE RESULT

Date: [Date]
Patient: [Name or ID, age]
Form: [Adult ESS or ESS-CHAD, language, from the licensed source]
Completed: [By the patient alone, with help, or read aloud; interpreter if used]
Reason: [Daytime sleepiness, snoring, suspected sleep apnea, treatment review, or work assessment]

SCORE
Total: [0 to 24, all eight items answered]
Range: [Normal, mild, moderate, or severe excessive daytime sleepiness]
Previous ESS: [Dates and totals, or first score]

CONTEXT
Sleep hours: [Usual bedtime and wake time, and hours slept on work and free days]
Work pattern: [Day work, rotating shifts, nights, or long-haul driving]
Medicines and substances: [Sedating medicines, opioids, antihistamines, alcohol, cannabis, and caffeine]
Drowsy driving: [Dozing at the wheel, near misses, or crashes, and the license type]

RELATED FINDINGS
Breathing in sleep: [Snoring, witnessed apneas, choking or gasping, morning headaches]
Examination: [BMI, neck size, blood pressure, and airway]
Apnea risk: [STOP-Bang or other risk score, if used]
Other causes considered: [Low mood, thyroid, restless legs, cataplexy, insomnia, or body clock problems]
Impression: [Likely cause of the sleepiness, or still unclear]

PLAN
Next step: [Sleep study, sleep clinic referral, sleep hygiene, shift-work advice, medicine change, or treatment change]
Driving advice: [What was advised, and any licensing requirement discussed]
Teaching: [What the patient was told and understood]

REPEAT
Score again: [Date or interval, such as weeks after treatment starts]
What would change the plan: [The score or new symptom that prompts referral or a change]

Clinician: [Name, credentials]

Get the official ESS from its source.

Who holds it

Dr. Murray W. Johns, who developed it in 1990 and revised it in 1997 (© MW Johns 1990–1997). Mapi Research Trust distributes and licenses it as his agent.

How you may use it

The ESS is copyrighted, and it may not be changed. Any use needs a license, with or without a fee: students, individual clinicians, clinical practice, and unfunded academic users download it and its translations free with an ePROVIDE account. Funded research, healthcare organizations, and commercial users may pay a fee, and every electronic version needs a license agreement with Mapi Research Trust.

Use it for

  • Primary care sleep complaints
  • Sleep clinic intake
  • CPAP follow-up
  • Occupational health
  • Narcolepsy and hypersomnia care
  • Telehealth visits

What the score means. 0 to 24.

0 to 5: Lower normal

Less daytime sleepiness than most healthy adults. Still follow up snoring, witnessed apneas, or other symptoms: a normal score doesn’t rule out sleep apnea.

6 to 10: Higher normal

Daytime sleepiness in the upper part of the healthy range. Follow up other symptoms the same way; a normal score doesn’t rule out a sleep disorder.

11 to 12: Mild excessive sleepiness

Sleepier than most adults. Check sleep hours, shift work, and sedating medicines first, and look for sleep apnea when there are other signs.

13 to 15: Moderate excessive sleepiness

Look for the cause with a full sleep history and an apnea risk check, and arrange a sleep study when it fits. Advise against driving while drowsy.

16 to 24: Severe excessive sleepiness

The range seen in untreated sleep apnea, narcolepsy, and idiopathic hypersomnia. Assess promptly, usually with a sleep study or a sleep clinic referral, and give clear driving advice.
  • Add the eight item scores, each 0 to 3, for a total from 0 to 24. If a mark between two boxes leaves a half in the total, round it up to the next whole number, as the developer advises.
  • A missing item makes the ESS invalid: the developer advises against guessing or prorating it. Ask the missing item before the patient leaves.
  • The normal range is 0 to 10, from Australian adults without a chronic sleep disorder. The developer splits it into 0 to 5, lower normal, and 6 to 10, higher normal daytime sleepiness. A total of 11 or more is excessive daytime sleepiness.
  • Some studies and protocols use 10 or more as the cutoff instead. Record the total itself, not only whether it crossed a line.
  • The ESS measures how sleepy the person is, not why. Sleep apnea, too little sleep, shift work, sedating medicines, depression, narcolepsy, and idiopathic hypersomnia can all raise it.
  • It doesn’t track apnea severity closely. Many people with moderate or severe sleep apnea score in the normal range, so a normal ESS doesn’t rule it out.
  • On treatment, studies in sleep apnea put the smallest improvement patients notice at 2 to 3 points. Treatment aims to bring the score into the normal range.
  • The score alone shouldn’t decide whether someone may drive or hold a license. It can’t predict drowsiness at a given moment, though the developer notes that very high scores, above 15, may carry more weight. Ask about dozing at the wheel directly.
  • Age and sex make little difference to scores, but they run somewhat higher in some ethnic groups. The ESS isn’t suited to people with serious cognitive impairment, or to changes over a few hours.
  • For children and adolescents, use the ESS-CHAD, published in 2015 and scored the same way. Most children from about 9 can answer it alone.

How to give it, score it, and read it.

Giving it

The patient completes it on their own, on the official form, rating how likely they are to doze in each situation in recent times: the last few weeks or months, not today.

  • Use the licensed form in the patient’s language, with its own instructions
  • Let the patient answer alone; a partner’s view of their sleepiness is useful, but record it apart
  • For a situation they haven’t been in lately, the patient estimates how it would affect them
  • Read the form aloud word for word when reading is hard

Avoid: Explaining what the score means while the patient is still answering. The developer advises against it, as it can change the answers.

Scoring

Each of the eight items scores 0 to 3; add them for a total from 0 to 24.

  • Check that all eight items are answered before the patient leaves
  • Round a half-point total up to the next whole number
  • Record the total and the range, and the item scores if your form keeps them

Avoid: Guessing or prorating a missing item. A form with a blank item gives no valid score; ask the item instead.

Reading the score

0 to 10 is the normal range, and 11 or more is excessive daytime sleepiness, rising in severity to 24.

  • Name the range next to the total
  • Compare with earlier scores, taken the same way
  • Weigh the score against what the patient and their partner describe

Avoid: Reading a high score as a diagnosis. The ESS says how sleepy, not why; the history and, often, a sleep study find the cause.

Finding the cause

A score above 10 starts the search for a cause; a sleep history usually narrows it.

  • Sleep hours on work and free days, and the shift pattern
  • Snoring, witnessed apneas, gasping, and morning headaches, with BMI, neck size, and blood pressure
  • Sedating medicines, opioids, alcohol, and cannabis
  • Low mood, thyroid symptoms, restless legs, and cataplexy or sleep attacks
  • An apnea risk score such as STOP-Bang, and a sleep study when apnea is likely

Avoid: Stopping at “not enough sleep” when the patient sleeps 7 to 8 hours and is still sleepy. That pattern needs a sleep study.

Driving safety

Ask every sleepy patient about driving, whatever the total, and record what you advised.

  • Dozing at the wheel, near misses, and crashes, and whether they drive for work
  • Advise not to drive while drowsy: pull over and nap, or don’t start the trip
  • Give firmer advice with a severe score, a near miss, or a commercial license
  • Follow the licensing rules where the patient lives, and record the discussion

Avoid: Letting a normal score settle the question. People with a normal total can still doze at the wheel, and the ESS alone shouldn’t decide licensing.

Tracking treatment

Repeat the ESS after a change in treatment, such as a few weeks after starting CPAP, to see whether sleepiness has eased.

  • Use the same form and the same way of giving it each time
  • A fall of 2 to 3 points is a change patients notice; the goal is the normal range
  • Check CPAP use data and sleep hours when the score stays high
  • Look for a second cause when sleepiness persists on good treatment

Two recorded results. Every part, filled in.

Each one follows the recording template. Use them to judge how much to write.

ESS result: severe sleepiness in a truck driver who snores

Family practice, blood pressure follow-up, form completed in the waiting room

Score

Total 16, severe excessive daytime sleepiness. All eight items answered. First ESS.

Context

49-year-old long-haul truck driver. Sleeps about 6 hours a night in his cab on work nights, 8 on days off. No sedating medicines; 3 to 4 coffees a day, 2 beers on weekends. Dozed at the wheel last month and woke on the rumble strip; no crashes.

Related findings

Loud snoring every night for years; his wife has seen him stop breathing and gasp. Morning headaches. BMI 34, neck 45 cm (17.7 in), blood pressure 148/92 on two medicines. STOP-Bang 6, high risk. Mood good, no cataplexy, no restless legs. Impression: likely obstructive sleep apnea.

Plan

Referred for a sleep study, marked urgent because of his work and the near miss. Advised not to drive any vehicle while drowsy, and to stop commercial driving until he is assessed and treated; he will speak with his employer. Licensing requirements for his license class discussed and recorded. Weight and alcohol advice given.

Repeat

ESS again 4 to 6 weeks after treatment starts, with CPAP use data if it’s prescribed. Aim: 10 or below, with good CPAP use, before he goes back to long-haul driving, alongside any licensing requirement.

Common mistakes, and how to avoid them.

Ruling out sleep apnea on a normal score

Many people with significant apnea score 10 or below. Snoring with witnessed apneas, a large neck, or resistant high blood pressure still needs assessing.

Treating the score as the cause

A total of 15 says the patient is very sleepy, not why. Take the sleep history before deciding between a sleep study, a medicine change, or sleep advice.

Scoring a form with a blank item

A missing item makes the ESS invalid, and prorating it isn’t accepted. Check the form while the patient is still there.

Using an altered copy

Retyped and reworded versions circulate online, and they aren’t validated. Use the licensed form and its official translations.

Skipping the driving question

A sleepy patient who drives needs to be asked about dozing at the wheel and given clear advice, recorded in the note, whatever the total.

Mention the score. Review the note.

Vero Scribe records the ESS result in your template from the visit, with the patient’s consent, or from your dictation: the total, the context, the findings that point to a cause, and the driving advice you gave. You review and edit every line, then copy it into your record. Vero works in 60+ languages.

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Frequently asked questions.

How do you score the Epworth Sleepiness Scale?

The patient rates how likely they are to doze off in each of eight everyday situations, from 0 for no chance to 3 for a high chance. Add the eight scores for a total from 0 to 24. Round a half-point total up, and treat a form with a missing item as invalid.

What is a normal Epworth score?

0 to 10 is the normal range. The developer splits it into 0 to 5, lower normal, and 6 to 10, higher normal daytime sleepiness. Above 10 is excessive daytime sleepiness: 11 to 12 mild, 13 to 15 moderate, and 16 to 24 severe.

What Epworth score suggests sleep apnea?

None on its own. The ESS measures sleepiness, and many people with moderate or severe sleep apnea score in the normal range. A score above 10, with snoring, witnessed apneas, or a high apnea risk score, points toward a sleep study, which makes the diagnosis.

What is the difference between the Epworth and STOP-Bang?

The ESS measures how sleepy someone is, whatever the cause. STOP-Bang estimates how likely obstructive sleep apnea is, from eight yes-or-no items on snoring, tiredness, observed apneas, blood pressure, BMI, age, neck size, and sex; 5 or more of 8 is high risk. They answer different questions, and many clinics use both.

What are the eight Epworth questions?

Each describes an everyday situation, most of them sitting, chosen because they differ in how strongly they tend to make people doze. The official form, with its exact wording and translations, comes from Mapi Research Trust’s ePROVIDE site. Use that form rather than a copy found online, as altered versions aren’t validated.

Who can give the Epworth Sleepiness Scale?

The patient completes it themselves, in a few minutes, in the waiting room, online, or at home. Any member of the care team can hand it out and score it, and the clinician reads it alongside the history. It can be read aloud word for word when reading is hard.

Show all questions
Can the Epworth score decide whether someone can drive?

Not on its own. The developer advises against using the ESS alone for decisions such as granting or withholding a license, as it can’t predict drowsiness at a given moment. Ask about dozing at the wheel and near misses, advise against drowsy driving, and follow the licensing rules where the patient lives.

How much should the Epworth score improve with treatment?

Studies in sleep apnea treated with CPAP put the smallest improvement patients notice at 2 to 3 points. The aim is a score in the normal range. If it stays above 10 on treatment, check CPAP use and sleep hours, then look for a second cause.

Can the Epworth Sleepiness Scale be used for children?

Use the ESS-CHAD, the authorized version for children and adolescents published in 2015. It is scored the same way, from 0 to 24. Most children from about 9 can answer it alone; younger children need a parent’s help.

Is the Epworth Sleepiness Scale free?

For students, individual clinicians, clinical practice, and unfunded academic research, yes: download the official form and its translations free from Mapi Research Trust’s ePROVIDE site after signing up. Funded research, healthcare organizations, and commercial users need a license agreement, and fees may apply; so does any electronic version, such as one built into an app. The recording template on this page is free to copy or download.

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