https://en.wikipedia.org/wiki/Sleep
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 mu
https://www.sleepfoundation.org/how-sleep-works/benefits-of-sleep
Jul 22, 2025 · Getting enough quality sleep is essential for both mental and physical health. Key benefits of sleep include: Like eating well, staying hydrated, and exercising reg
https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/sleep/art-20048379
Jan 31, 2025 · Consider simple tips for better sleep, from setting a sleep schedule to including physical activity in your daily routine. Many factors can interfere with a good ni
https://www.health.harvard.edu/staying-healthy/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,
https://www.verywellhealth.com/stages-of-sleep-11705981
3 days ago · The sleep cycle starts with three non-REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.
https://my.clevelandclinic.org/health/body/12148-sleep-basics
You spend about one-third of your life sleeping, but it’s still something many struggle with. Researchers and experts also struggle with it because of the mysteries surrounding h
https://www.cdc.gov/sleep/about/index.html
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.
https://www.hopkinsmedicine.org/health/wellness-and-prevention/the-science-of-sleep-understanding-what-happens-when-you-sleep
Sleep accounts for one-quarter to one-third of the human lifespan. But what exactly happens when you sleep? Before the 1950s, most people believed sleep was a passive activity duri
https://www.scientificamerican.com/article/what-your-sleep-profile-reveals-about-your-health/
1 day ago · The profiles point to ways to improve sleep and health. Taking sleeping pills may hamper your memory, for instance, but could benefit your social relationships.
https://medlineplus.gov/healthysleep.html
Dec 9, 2025 · Sleep is a natural process that helps your body restore energy, supports learning and memory, and keeps you healthy. During sleep, your brain cycles through differen