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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. During sleep, there is a marked decrease in muscle activity and …

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

    Sleep is a body process that allows your body to rest, repair and restore itself. You need sleep to function properly. Lack of sleep has links to many health issues.

  3. Why Is Sleep Important? Benefits of Healthy Sleep

    2 days ago · Sleep is more than "lights out" time. Learn what happens when you sleep and why sleep is important for your mental and physical health.

  4. SLEEP | Oxford Academic

    Explore curated collections of influential articles on sleep and trauma exposure, narcolepsy, insomnia, and REM Sleep Behavior Disorder. Click here for an archive of previous abstract supplements.

  5. 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 many hours you sleep, but how well you sleep.

  6. Brain Basics: Understanding Sleep - National Institute of ...

    Feb 25, 2025 · Sleep is a complex and dynamic process that affects how you function in ways scientists are now beginning to understand. This webpage describes how your need for sleep is regulated and …

  7. Fall asleep faster and sleep better - Every Mind Matters - NHS

    Find out what can help you fall asleep faster and sleep better, including using sleep hygiene to improve sleep.