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  1. How Do Animals Sleep?

    Have you ever wondered how giraffes sleep, or how fish sleep? Read about the sleep patterns of various animals, including walruses, sharks, elephants, and more....

  2. How to Use Sleep Medications Safely

    Sleep medications can help fight insomnia, but it's important to work with a doctor, understand the risks, and follow instructions to use them safely....

  3. Paradoxical Sleep

    Paradoxical sleep is another name for rapid eye movement (REM) sleep. Learn about this sleep stage and discover other paradoxical sleep terms....

  4. Sleep Clinics and Centers

    Everyone has trouble falling asleep from time to time, but consistently struggling to fall and stay asleep may indicate a need for a visit to a sleep clinic....

  5. Aging and Sleep

    Getting older can affect the quality and duration of sleep. Learn more about the complex relationship between aging and sleep and how to get better rest....

  6. The Connection Between Animal and Human Sleep

    Most animals require sleep, but how much they need varies greatly. Learn about the similarities and differences in sleep habits between animals and humans....

  7. How to Prepare for a Sleep Study

    Sleep studies provide information about sleep problems. Discover tips to prepare for a sleep study so you can feel comfortable and get meaningful test results....

  8. Insomnia and Older Adults

    Want to learn more about insomnia in seniors? This guide discusses causes, symptoms, and treatment for insomnia and other sleep disorders in older adults....

  9. Sleep Spindles

    Sleep spindles are a pattern of brain waves that occur during non-rapid eye movement sleep. Learn how they influence health and development....

  10. Why Do I Keep Waking Up at Night?

    Is waking up at the same time each night normal? Learn more about potential reasons you might wake up each night at the same...