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Epworth Sleepiness Scale: What Your Score Means
Last updated: October 19, 2026. Medically reviewed by Dr. Avinesh Bhar, Board-Certified Sleep Physician, SLIIIP.com.
The Epworth Sleepiness Scale is a short questionnaire that rates how likely you are to doze off in eight everyday situations. Each answer scores from 0 to 3, so your total falls between 0 and 24. Dr. Avinesh Bhar, Board-Certified Sleep Physician at SLIIIP.com, uses the score as a starting point, not an answer. He points out that it measures how sleepy you are, but it cannot tell you why. A high Epworth score is a signal to look for a cause, such as sleep apnea, not a diagnosis on its own. A normal score does not rule out a sleep disorder if you snore, stop breathing at night, or wake up unrefreshed.
SLIIIP’s board-certified sleep physicians can do sleep evaluations for sleep apnea. Virtual consultations in all 50 states. Home sleep tests shipped to your door.
What Is the Epworth Sleepiness Scale?
The Epworth Sleepiness Scale, often shortened to ESS, is a self-rated test of daytime sleepiness. Dr. Murray Johns created it in Australia and published it in 1991. Sleep doctors around the world still use it today because it is quick, free, and easy to repeat. The scale asks about your usual chance of dozing in recent weeks, not how you feel on one bad day. You do not need any equipment. Most people finish it in two or three minutes.
The test looks at sleepiness, which is different from feeling tired. Tiredness means low energy or weakness. Sleepiness means your brain is pulling you toward sleep, even when you want to stay awake. This difference matters because the two often point to different problems.
What Are the 8 Questions on the Epworth Sleepiness Scale?
The scale lists eight common situations and asks how likely you are to doze in each one. According to the Washington University Sleep Medicine Center, the eight situations are listed below.
- Sitting and reading
- Watching TV
- Sitting inactive in a public place, such as a theater or meeting
- Being a passenger in a car for an hour or more
- Lying down to rest in the afternoon
- Sitting and talking to someone
- Sitting quietly after lunch without alcohol
- Sitting in a car stopped for a few minutes in traffic
Each situation is scored on the same simple scale.
- 0 = would never doze
- 1 = slight chance of dozing
- 2 = moderate chance of dozing
- 3 = high chance of dozing
If you have not been in a situation lately, think about how you would likely act. Then add the eight numbers together for your total score.
What Does My Epworth Sleepiness Scale Score Mean?
A score of 0 to 9 suggests a lower chance of falling asleep during normal daily activities. The Washington University Sleep Medicine Center describes 10 to 14 as moderately severe sleepiness. It describes a score of 15 or more as severe sleepiness that should be discussed with a physician. Many sleep clinics use 10 or higher as the point where sleepiness deserves a closer look.
- 0 to 9: Lower chance of dozing during the day. This is the expected range for most rested adults.
- 10 to 14: Moderate sleepiness. It is worth talking with a doctor about your sleep habits and symptoms.
- 15 to 24: Severe sleepiness. This range should be reviewed with a physician, and drowsy driving is a real concern.
Your score is a snapshot, not a label. It can change with stress, a new medicine, a new baby, or a stretch of short nights. If your score stays at 10 or higher after a week or two of full, regular sleep, that is a reason to get checked.
Can the Epworth Sleepiness Scale Tell If I Have Sleep Apnea?
No, the Epworth Sleepiness Scale cannot diagnose sleep apnea. It only measures how sleepy you feel during the day. Sleep apnea is diagnosed with a sleep study, which tracks your breathing and oxygen levels while you sleep. Obstructive sleep apnea is a common medical cause of a high Epworth score, but it is not the only one.
Some people with sleep apnea score in the normal range. They may feel tired, foggy, or wake with headaches, but they do not doze off easily. Others have adjusted to feeling sleepy for so long that they rate themselves lower than they should. That is why sleep doctors look at the full picture. They ask about snoring, breathing pauses, gasping, weight, blood pressure, and how you feel in the morning.
If you want a quick check of sleep apnea warning signs, SLIIIP also offers a short Do I Have Sleep Apnea quiz. It asks about different symptoms than the Epworth scale does.
What Can Cause a High Epworth Score?
A high score means your body is not getting the rest it needs, or something is disrupting how alert you feel. The American Academy of Sleep Medicine notes that sleepiness can come from medical conditions, medicines, and lifestyle factors that lead to ongoing sleep loss. Common causes are listed below.
- Not enough sleep. Regularly sleeping less than you need is one of the most common reasons for daytime dozing.
- Obstructive sleep apnea. Repeated breathing pauses break up your sleep, often without you knowing it.
- Narcolepsy. This brain-based disorder is linked to strong, sudden sleepiness during the day. Learn more in our guide to narcolepsy symptoms and testing.
- Insomnia or poor sleep quality. Trouble falling or staying asleep can leave you drowsy the next day.
- Shift work or an irregular schedule. Sleeping against your body clock is associated with more daytime sleepiness.
- Medicines and alcohol. Some allergy, pain, anxiety, and sleep medicines are linked to next-day drowsiness.
- Restless legs or limb movements. These can fragment sleep even when you stay in bed for hours.
Sometimes people sleep long hours and still feel sleepy. If that sounds familiar, our article on whether sleeping too much is a sleep disorder covers that pattern.
Why Does Daytime Sleepiness Matter for Your Health?
The American Academy of Sleep Medicine calls sleepiness a critical patient-reported outcome. In a 2025 position statement, it linked excessive sleepiness to cognitive problems, workplace accidents, and drowsy driving crashes. It also linked sleepiness to depression and lower quality of life.
Daytime sleepiness affects more than your energy. It can make it harder to focus, remember details, and control your mood. The most urgent risk is drowsy driving, because a few seconds of sleep at the wheel can be enough to cause a crash. If you scored a 2 or 3 on the question about sitting in traffic, take that answer seriously.
How Do Sleep Doctors Use Your Epworth Score?
Sleep doctors use the Epworth score in three main ways. First, it helps them understand how much your sleepiness affects daily life. Second, it helps decide which tests make sense next. Third, it gives a baseline to compare against after treatment starts.
For example, a person with loud snoring and a score of 13 may be sent for a home sleep test. A person with a high score, no snoring, and sudden sleep attacks may need different testing for narcolepsy. When treatment for a sleep disorder is working, many people see their Epworth score come down over time. Repeating the scale every few months is a simple way to track that change.
Tips for Getting an Accurate Score
- Answer based on your usual routine over the past few weeks, not just yesterday.
- Be honest. Many people rate themselves lower than their partner or family would.
- Ask a bed partner or close friend if they notice you dozing off.
- Write down your score and the date so you can compare later.
- Bring your score to your appointment, along with notes on snoring, naps, and caffeine use.
Watch: Dr. Wells explains what is excessive daytime sleepiness
When to See a Doctor
Dr. Avinesh Bhar recommends a sleep evaluation when your Epworth score is 10 or higher and stays there after you give yourself enough sleep. He also advises booking sooner, at any score, if you have loud snoring, breathing pauses, or gasping at night. Dozing off while driving, even once, is a reason to talk to a doctor right away.
You should also reach out if you notice any of these signs.
- You fall asleep during conversations, meals, or meetings.
- You need naps most days but still feel sleepy after them.
- You wake with headaches, a dry mouth, or a racing heart.
- You have sudden muscle weakness when you laugh or feel strong emotion.
- Your sleepiness started after a new medicine. Do not stop or change any prescribed medicine on your own. Talk with your prescriber first.
A virtual sleep visit can review your score, symptoms, and health history. If sleep apnea is suspected, a home sleep test may be the next step.
SLIIIP works with many insurance plans, including Medicare and TRICARE. Check your coverage before your visit.
SLIIIP’s board-certified sleep physicians can do sleep evaluations for sleep apnea. Virtual consultations in all 50 states. Home sleep tests shipped to your door.
For cash payments, price for Initial Consultation is $150
Follow up appointments cost $125
Frequently Asked Questions
What is the Epworth Sleepiness Scale?
It is a short questionnaire that rates your chance of dozing in eight everyday situations. It measures daytime sleepiness.
Who created the Epworth Sleepiness Scale?
Dr. Murray Johns created it in Australia. It was first published in 1991.
How is the Epworth Sleepiness Scale scored?
Each of the eight situations is scored from 0 to 3. The numbers are added for a total from 0 to 24.
What is a normal Epworth score?
A score of 0 to 9 suggests a lower chance of dozing during normal daily activities.
Is an Epworth score of 10 bad?
A score of 10 or higher suggests more daytime sleepiness than expected. It is worth discussing with a doctor.
What does an Epworth score of 15 or more mean?
It suggests severe sleepiness. This range should be reviewed with a physician.
Can the Epworth scale diagnose sleep apnea?
No. It measures sleepiness only, and sleep apnea is diagnosed with a sleep study.
Can I have sleep apnea with a normal Epworth score?
Yes. Some people with sleep apnea do not feel very sleepy, so other symptoms matter too.
Is sleepiness the same as fatigue?
No. Sleepiness is a pull toward sleep, while fatigue is low energy without an urge to doze.
How long does the Epworth test take?
Most people finish it in two or three minutes.
What time period should I think about when answering?
Think about your usual routine over recent weeks, not just one day.
What if I have not been in one of the situations lately?
Estimate how likely you would be to doze if you were in that situation.
Can medicine raise my Epworth score?
Some medicines are linked to daytime drowsiness. Talk with your prescriber before changing any medicine.
Can poor sleep habits cause a high score?
Yes. Regularly sleeping too little is one of the most common reasons for a high score.
Should I drive if my Epworth score is high?
If you feel drowsy behind the wheel, do not drive. Talk with a doctor soon.
Do sleep doctors still use the Epworth scale?
Yes. It is widely used to screen sleepiness and track changes over time.
Can my Epworth score improve with treatment?
When treatment for a sleep disorder is working, many people see their score go down.
How often should I retake the Epworth scale?
Retaking it every few months, or after a treatment change, can help track progress.
Can I take the Epworth test online?
Yes. The questions are simple, but a sleep doctor should help interpret your result.
Does insurance cover a sleep evaluation?
SLIIIP works with many insurance plans, including Medicare and TRICARE. Check your benefits before booking.
SLIIIP's board-certified sleep physicians can do sleep evaluations for sleep apnea. Virtual consultations in all 50 states. Home sleep tests shipped to your door.
SLIIIP’s board-certified sleep physicians can do sleep evaluations for sleep apnea. Virtual consultations in all 50 states. Home sleep tests shipped to your door.
