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  1. REM Rebound: Causes and Effects

    Learn more about the underlying mechanisms of REM rebound, a phenomenon in which a person temporarily experiences more rapid eye movement (REM) sleep....

  2. What if I Can’t Sleep During a Sleep Study?

    Have you ever wondered what to do if you can't sleep during a sleep study? We offer a few tips to help you get enough sleep for accurate results....

  3. Sleep Paralysis Demon

    People have experienced sleep paralysis demons for centuries. Learn about these hallucinations, how they differ from dreams, and how you can prevent them....

  4. How to Get More Deep Sleep

    Wondering whether you get enough deep sleep? Find tips to get more deep sleep, facts about deep sleep, and when to talk to a doctor about sleep problems....

  5. How Much Does a Sleep Study Cost?

    Wondering how much a sleep study costs? Find out why some tests are more expensive than others and whether they are covered by insurance....

  6. Sleep Health

    Looking for sleep information? From understanding how sleep works to our best tips for a restful night, start your search here....

  7. Best Sleep Apps of 2026

    Sleep apps can help you relax and wind down before bed. This guide includes our picks for the best sleep apps and tips for finding the right app for you....

  8. How Sleep Affects Immunity

    Getting the sleep you need is vital for your immune system. Lack of sleep can disrupt your immune defense, raising the risk for short- and long-term illnesses....

  9. Can COVID-19 Cause Insomnia and Sleep Problems?

    Sleep problems have grown during the pandemic. Learn about coronasomnia and the diverse ways that COVID-19 can disrupt sleep and cause insomnia....

  10. How Sleep Works: Understanding the Science of Sleep

    Sleep is a complex and dynamic biological process that still isn’t fully understood. Learn about how sleep works and why it’s vital for overall health....