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  1. Insomnia - Symptoms and causes - Mayo Clinic

    Jan 16, 2024 · Insomnia is a common sleep disorder that can make it hard to fall asleep or stay asleep. It also can cause you to wake up too early and not be able to get back to sleep.

  2. Insomnia: What It Is, Causes, Symptoms & Treatment

    Feb 13, 2023 · Insomnia is when you don’t get enough quality sleep, affecting how you feel and function during waking hours. It’s usually not dangerous and is typically treatable.

  3. 13 Medical Conditions That Cause Insomnia - WebMD

    Jun 19, 2025 · Insomnia is when you can't fall asleep, even though you want to, or you can't stay asleep long enough. Events like a job loss or the death of a loved one often cause some …

  4. Insomnia: Causes, Symptoms, Types, and More - Healthline

    Apr 18, 2025 · Insomnia makes it difficult for you to fall asleep, stay asleep, or both. Get information on risk factors, symptoms, tests, treatments, and home remedies here.

  5. Insomnia - Wikipedia

    Insomnia, also known as sleeplessness, is a sleep disorder causing difficulty falling asleep or staying asleep for as long as desired. [1][9][11] Insomnia is typically followed by daytime …

  6. Insomnia - Harvard Health

    Sep 15, 2024 · Insomnia is difficulty getting enough sleep or trouble sleeping without interruption. You may have difficulty falling asleep, may wake up too early, or may wake up periodically …

  7. Insomnia - Johns Hopkins Medicine

    Insomnia means having trouble sleeping at night, staying asleep, or both. It's one of the most common sleep disorders. Episodes of insomnia that last a few days at a time are called short …

  8. Insomnia: Symptoms, Causes, and Treatments - Sleep Foundation

    Jul 4, 2025 · Insomnia is a sleep disorder that affects many people. Learn about symptoms, causes, and treatments.

  9. Insomnia - What Is Insomnia? | NHLBI, NIH

    Mar 24, 2022 · People who have insomnia have trouble falling asleep, staying asleep, or both. Learn about the risk factors and treatments for insomnia.

  10. Insomnia: Causes, Symptoms, Diagnosis, and Treatment

    Sep 9, 2025 · Insomnia is more than a simple inconvenience; it is one of the most common sleep disorders and has profound effects on health, productivity, and overall quality of life. It can …