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- 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 interactions with the surrounding environment
- Why Do We Need Sleep?
Everyone needs sleep, but about one in three American adults don’t get enough of it The consequences of sleep deprivation are serious, so it’s worth learning why sleep matters, how it works, and how to give yourself the best chances of getting a good night’s sleep
- About Sleep | Sleep | CDC
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
- The Science of Sleep: What Is Sleep and Why Do We Sleep?
We spend a third of our lives sleeping, but have you ever wondered what is sleep, exactly? Learn why sleep is so important and get tips for sleeping better
- Healthy Sleep - MedlinePlus
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 different stages of non-rapid eye movement (non-REM) sleep and rapid eye movement (REM) sleep
- 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 connections and more
- How Much Sleep Do You Really Need? - National Sleep Foundation
How many hours of sleep you should get varies by person and age, but most people need between seven and nine hours each night
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