Jul 25, 2025 · Healthy sleep consists of four stages. We break down the traits of both REM and NREM stages, how they differ, and how to get better sleep.

Jul 10, 2025 · During sleep, intricate processes unfold in the brain and body. Learn about what happens when you sleep and why it’s important to get quality, restorative rest.

Jul 8, 2025 · 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.

Jul 29, 2025 · What Is NREM Sleep? Non-rapid eye movement (NREM) sleep encompasses three sleep stages , referred to as stage 1, stage 2, and stage 3 NREM sleep. While unique …

Jul 3, 2025 · REM sleep is known for dreaming, but much more happens during this critical sleep stage. Learn what REM sleep involves and how much REM sleep you need.

Jul 16, 2025 · Without enough of it, even a full night’s sleep can leave you feeling groggy and unrefreshed. We take a closer look at this sleep stage, including what makes deep sleep …

Jul 10, 2025 · We tend to think of sleep as a time when the mind and body shut down. However, sleep involves many important and necessary processes.

May 15, 2023 · Slow-wave sleep is a deep and restorative stage of sleep. Learn about what happens in the body during slow-wave sleep and the importance of this sleep stage.

Jul 29, 2025 · 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.

Dec 21, 2023 · Paradoxical sleep is another name for rapid eye movement (REM) sleep. Learn about this sleep stage and discover other paradoxical sleep terms.