Pediatric Epworth Sleepiness Scale (ESS) Calculator
Rate the chance of dozing in 8 everyday situations to compute an Epworth Sleepiness Scale (ESS) score. A total above 10 indicates excessive daytime sleepiness that warrants investigation. The ESS is most reliably used in adolescents aged 12 and older.
Sitting and reading
Watching TV or a screen
Sitting inactive in a public place (class, meeting)
As a passenger in a vehicle for an hour without a break
Lying down to rest in the afternoon
Sitting and talking to someone
Sitting quietly after lunch (no alcohol)
Stopped in traffic or at a red light (in a vehicle)
Total score 0–24 • ≤10 normal • 11–12 mild • 13–15 moderate • ≥16 severe
- 1
Non-zero item scores
0 of 8 items scored ≥ 1 = 0 - 2
Total ESS score (sum of all 8)
0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 = 0Normal daytime sleepiness (≤ 10)
How does this calculator work?
The ESS sums eight situational dozing likelihood scores (0–3 each) to give a 0–24 total. Scores ≤10 are normal; 11–12 mild; 13–15 moderate; ≥16 severe excessive daytime sleepiness. Designed for adults, it can be self-completed by adolescents ≥12 years. A score above 10 warrants sleep evaluation; polysomnography is needed for diagnosis.
Formula
How this is calculated
The Epworth Sleepiness Scale was developed by Murray Johns in 1991 (Johns MW, Sleep 1991;14:540–545) to measure daytime sleep propensity — the tendency to fall asleep in passive situations. It asks subjects to rate the likelihood of dozing in eight everyday scenarios using a four-point scale (0–3). The sum (0–24) has been validated against polysomnographic measures of sleep latency and is widely used to screen for obstructive sleep apnea, narcolepsy, idiopathic hypersomnia, and insufficient sleep syndrome.
In clinical practice for adolescents, a score ≤10 is generally considered normal. Scores of 11–12 represent mild excessive daytime sleepiness (EDS), 13–15 moderate EDS, and 16–24 severe EDS. Each of these categories carries progressively higher likelihood of an underlying sleep disorder — especially obstructive sleep apnea, the most common cause of EDS in children and adolescents — and increases the likelihood that the daytime sleepiness is impairing school performance, attention, and mood.
The original ESS was validated in adults. It can be completed by adolescents (typically ≥12 years) and by parents reporting for younger children, though parent-report and self-report scores sometimes diverge. For children under 12, validated alternatives include the Pediatric Daytime Sleepiness Scale (PDSS) and the Children's Sleep Habits Questionnaire (CSHQ). A high ESS score is not diagnostic on its own — confirmatory testing such as overnight polysomnography or actigraphy is needed.
Frequently asked questions
A score greater than 10 is generally considered above the normal range and suggests excessive daytime sleepiness. Some paediatric sleep specialists use a cut-off of ≥11 or ≥12 for referring adolescents for further evaluation. Context matters — a score of 11 in a sleep-deprived teenager who goes to bed late is a different clinical situation from 11 in a child who gets adequate sleep.
The standard ESS was not validated in young children and relies on abstract probability judgements they may not reliably make. For ages 6–11, the Pediatric Daytime Sleepiness Scale (PDSS) or the sleepiness subscale of the Children's Sleep Habits Questionnaire (CSHQ) are more appropriate. Parents completing the ESS on behalf of younger children often underestimate sleepiness, since they observe less of the child's passive daytime behaviour.
No — excessive daytime sleepiness has many causes: obstructive sleep apnea is the most common organic cause in children, but narcolepsy, idiopathic hypersomnia, insufficient sleep (often from late screens), circadian rhythm disorders, and mood disorders all elevate the ESS. The ESS indicates the severity of daytime sleepiness; the underlying cause requires clinical history, examination, and usually polysomnography.
Also known as
TG we-Calculate Editorial Team. (2026). Pediatric Epworth Sleepiness Scale (ESS) Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/pediatric-epworth-sleepiness-scale-calculator
TG we-Calculate Editorial Team. "Pediatric Epworth Sleepiness Scale (ESS) Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/pediatric-epworth-sleepiness-scale-calculator.
TG we-Calculate Editorial Team, "Pediatric Epworth Sleepiness Scale (ESS) Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/pediatric-epworth-sleepiness-scale-calculator
@misc{wecalculate_pediatric_epworth_sleepiness_scale_calculator, title = {Pediatric Epworth Sleepiness Scale (ESS) Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/pediatric-epworth-sleepiness-scale-calculator}}, year = {2026}, note = {TG we-Calculate} }
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