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.cdc.gov/sleep/about/index.html
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.
https://my.clevelandclinic.org/health/body/12148-sleep-basics
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.
https://www.sleepfoundation.org/how-sleep-works/why-do-we-need-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 and physical health.
https://www.ninds.nih.gov/health-information/public-education/brain-basics/brain-basics-understanding-sleep
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 sl
https://www.hopkinsmedicine.org/health/wellness-and-prevention/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 of sleep, your biological clock, health connecti
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.sleepfoundation.org/stages-of-sleep
Jul 25, 2025 · There are four phases of sleep, including one for rapid eye movement (REM) sleep and three that form non-REM (NREM) sleep. These stages are determined based on an a
https://www.cdc.gov/sleep/index.html
List of non-CDC websites to find more information about sleep and sleep health. By sharing information and resources, CDC raises awareness about the importance of sleep health and
https://www.psychologytoday.com/us/basics/sleep?msockid=1009bc1f4bc263e72817ab774a526255
Jun 24, 2025 · 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 from external elements such a