You’ve heard of REM sleep but what about deep sleep? Experts share why it’s important and how to make sure you’re getting ...

Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Deep sleep is essential for health, making up 20% to 25% of total sleep time.Not getting enough deep sleep can raise the risk of problems like ...

It can be tough to calculate exactly how long you’re in REM, but many health trackers use your heart rate, heart rate variability, and data on your movements to make solid estimations. (Just know that ...

Oura reports 14 science-backed strategies to recover from a bad night’s sleep, including hydration, natural light exposure, ...

Evening coffee has sparked controversy for years. Some people fall asleep without difficulty, while others toss and turn for ...

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And how to actually get better rest, according to experts. By Katie Mogg There’s no question that sleep is important for your health. Without enough of it, your risk of developing diseases such as ...

"I can’t fall asleep without a glass of wine." Can you relate? As a sober therapist who quit alcohol after drinking to fall asleep for over a decade, I completely understand. Worrying about lost sleep ...

Immune cells rush to the brain and promote deep sleep after a heart attack, according to a new study involving both mice and humans. This heavy slumber helps recovery by easing inflammation in the ...

I'm a certified sleep science coach who has tested over 50 mattresses. Traveling, whether for business or pleasure, is an important part of on-the-go lifestyles, but it can take its toll on your ...