Epworth Sleepiness Scale (ESS)


The Epworth Sleepiness Scale (ESS) is a widely used tool in sleep medicine and research, designed to assess daytime sleepiness and the likelihood of falling asleep in various situations. Developed by Dr. Murray Johns in 1991, the ESS provides a standardized measure of subjective sleepiness, allowing healthcare professionals to evaluate the severity of excessive daytime sleepiness (EDS) in patients. Excessive daytime sleepiness can be a symptom of various sleep disorders, such as obstructive sleep apnea, narcolepsy, or insufficient sleep syndrome, and can significantly impact an individual’s quality of life and daytime functioning.

The Epworth Sleepiness Scale typically consists of different questions or scenarios, each describing a common daily activity or situation. Patients rate their likelihood of dozing off or falling asleep during these activities on a scale ranging from 0 to 3, with higher scores indicating greater daytime sleepiness. The total score, obtained by summing the responses across all items, provides an overall measure of daytime sleepiness, with scores above a certain threshold suggestive of clinically significant EDS.

Healthcare professionals, including sleep specialists, primary care physicians, and psychologists, utilize the Epworth Sleepiness Scale as a screening tool to identify individuals at risk of sleep disorders and assess the effectiveness of treatment interventions. By quantifying subjective sleepiness, the ESS aids in diagnostic decision-making, treatment planning, and monitoring of patients’ progress over time. Moreover, the ESS facilitates communication between patients and healthcare providers, enabling discussions about sleep habits, symptoms, and potential underlying sleep disorders. Thus, the Epworth Sleepiness Scale plays a crucial role in the evaluation and management of excessive daytime sleepiness, contributing to improved sleep health and overall well-being.

Epworth Sleepiness Scale Calculator

Epworth Sleepiness Scale Calculator