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  1. Sleep - Wikipedia

    Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. …

  2. Sleep: What It Is, Why It’s Important, Stages, REM & NREM

    Jun 19, 2023 · Sleep is a body process that allows your body to rest, repair and restore itself. You need sleep to function properly. …

  3. Why Do We Need Sleep?

    Jul 10, 2025 · Everyone needs sleep, but about one in three American adults don’t get enough of it. The consequences of sleep …

  4. About Sleep | Sleep | CDC

    May 15, 2024 · Quality sleep means you are getting uninterrupted and refreshing sleep. Getting quality sleep is not just about how …

  5. Brain Basics: Understanding Sleep - National Institute of Neurological ...

    Feb 25, 2025 · Sleep is a complex and dynamic process that affects how you function in ways scientists are now beginning to …

  6. The Science of Sleep: Understanding What Happens When You Sleep

    What exactly does sleep do for your body and mind? Here’s what researchers know about the science of sleep—including the stages …

  7. What happens during sleep - and how to improve it - Harvard Health

    Jun 1, 2025 · Sleep affects nearly every part of your health, from brain function to immune strength. Learn what happens in each …

  8. Mesa Sleep Clinic - Sleep Study | Valley Sleep Center

    Schedule a consult virtually, or come in to our Mesa location for a sleep study or treatment

  9. SLEEP | Oxford Academic

    Explore curated collections of influential articles on sleep and trauma exposure, narcolepsy, insomnia, and REM Sleep Behavior …

  10. Sleep tips: 6 steps to better sleep - Mayo Clinic

    Jan 31, 2025 · Consider simple tips for better sleep, from setting a sleep schedule to including physical activity in your daily routine. …