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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 Is Sleep Important? Benefits of Healthy Sleep

    Jun 11, 2026 · Sleep is more than "lights out" time. Learn what happens when you sleep and why sleep is important for your mental …

  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. Sleep | Definition, Patterns, Deprivation, & Theories | Britannica

    Aug 23, 2026 · Sleep usually requires the presence of relaxed skeletal muscles and the absence of the overt goal-directed behaviour …

  7. How Sleep Works - Why Is Sleep Important? | NHLBI, NIH

    Mar 24, 2022 · Learn about how sleep works and why it is important for your physical and mental health.

  8. Sleep | Psychology Today

    Sleep is the balm that soothes and restores after a long day. Sleep is largely driven by the body’s internal clock, which takes cues …

  9. 12 Hours of Relaxing Sleep Music for Stress Relief, Sleeping ...

    Jan 27, 2020 · 12 hours of relaxing sleep music for stress relief and prevent insomnia. This calming background music is a long …

  10. Healthy Sleep: Best Amount, Tips, Benefits, Treatment, and More

    Sep 17, 2026 · Sleep is as important to your physical and mental health as food and water. Find out what makes for healthy sleep, …