Insomnia is a sleep disorder that involves difficulty falling asleep, staying asleep, or getting quality sleep. It can lead to fatigue, daytime sleepiness, mood changes, and impaired thinking and functioning. While insomnia can be short-lived, it can also be chronic, lasting for months or years. There are many possible causes of insomnia, including stress, anxiety, depression, poor sleep habits, and medical conditions. Treatment depends on the underlying cause. Some people may need medication, while others may benefit from behavioral changes, such as maintaining a regular sleep schedule. insomnia is a common sleep disorder that can have serious consequences for your health and well-being. If you’re struggling with insomnia, don’t suffer in silence. Talk to your doctor about treatment options.