Sleep is essential. Getting a good night’s rest is important for functioning well during the day. However, a number of sleep disorders can affect how much rest a person gets.
Most adults need 7–9 hours of sleep each night. There are negative consequences for mental and physical health, quality of life, and safety if they do not get enough quality sleep.
That said, sleep disorders are common. Experts estimate that as many as 70 million adults in the United States have sleep disorders and sleepiness issues.
There are many different sleep disorders. The four general categories of sleep disorders are as follows:
However, the International Classification of Sleep Disorders, Third Edition (ICSD-3) is the main clinical text for the diagnosis and categorization of sleep disorders. The ICSD-3 groups sleep disorders into six major categories rather than four.
This article looks at five sleep disorders, including their causes, symptoms, and potential treatment options.