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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 …

  2. Benefits of Sleep: Improved Energy, Mood, and Brain Health

    Jul 22, 2025 · Sleep is a complex biological process made up of several stages that cycle throughout the night. These stages include rapid eye movement (REM) sleep and non-REM …

  3. What happens during sleep — and how to improve it

    Jun 1, 2025 · Sleep impacts nearly every part of your health, from brain function to immune strength. Learn what happens in each phase of sleep, how to manage common disruptions, …

  4. About Sleep | Sleep | CDC

    May 15, 2024 · About Sleep Key points Good sleep is essential for our health and emotional well-being. Getting enough sleep and good sleep quality are essential for healthy sleep. The …

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

    Feb 25, 2025 · Sleep affects almost every type of tissue and system in the body—from the brain, heart, and lungs to metabolism, immune function, mood, and disease resistance.

  6. 10 Health Benefits of Sleep

    Aug 9, 2025 · Most adults need between seven and nine hours of sleep per day to maintain good health. Lack of sleep is linked to greater risks for heart disease, diabetes, and weight gain. …

  7. 15 Proven Tips to Sleep Better at Night - Healthline

    Nov 21, 2025 · Making changes to your diet and lifestyle may help improve your sleep quality. Certain supplements and natural remedies could also be beneficial. A good night’s sleep is …

  8. The Science of Sleep: Understanding What Happens When You …

    Throughout your time asleep, your brain will cycle repeatedly through two different types of sleep: REM (rapid-eye movement) sleep and non-REM sleep. The first part of the cycle is non-REM …

  9. What Happens When You Sleep? - Sleep Foundation

    Jul 10, 2025 · When you sleep, your body undergoes a series of changes that enable the rest that is vital to your overall health. Sleep allows the brain and body to slow down and engage in …

  10. Atrium Health Sleep Medicine

    If you have obstructive sleep apnea and are using a CPAP or BiPAP machine, we offer personalized counseling and education, ongoing clinical support and follow-up visits to make …