Insomnia is a common sleep disorder characterized by difficulty falling asleep, staying asleep, or both. This results in inadequate rest and can affect performance during waking hours.
Related terms
Sleep Hygiene: Refers to habits and practices conducive to sleeping well on a regular basis.
Circadian Rhythm Disorders: These disorders involve disruptions in the normal timing patterns of sleep due to various factors such as shift work or jet lag.
Hypersomnia: A condition characterized by excessive daytime sleepiness or prolonged nighttime sleep.