Sleep Disorders: Overview

A sleep disorder interferes with one's ability to sleep normally. For many people, it is a chronic, nightly problem that can affect daytime behavior. Activities at work and school and relations with loved ones can be affected. A sleep disorder can worsen existing medical conditions, and it can also lead to new medical problems.

Types of sleep disorders include:

• Circadian Sleep Disorders
• Excessive Sleepiness
• Insomnia
• Narcolepsy
• Obstructive Sleep Apnea
• Parasomnias
• Periodic Limb Movement Disorder and Restless Legs Syndrome

Epworth Sleepiness Scale

Are you sleepy all the time? Use the Epworth Sleepiness Scale (ESS) to measure your daytime sleepiness. Learn more.

This information has been approved by Teofilo Lee-Chiong, Jr, MD (September 2009).