Think sleeping more is always good for you? Discover how oversleeping can lead to heart disease, diabetes, and even cognitive ...

Deep sleep is the restorative stage of sleep. During this stage the body undergoes tissue repair, the immune system is ...

About 58% of respondents reported sleeping past 11 p.m., which exceeds the ideal bedtime of 10 p.m. Additionally, 44% of individuals feel unrefreshed upon waking up, indicating poor-quality sleep.

New Study Links Lower Proportions of Certain Sleep Stages to Brain Changes Associated With Alzheimer's Disease Mar. 31, 2025 — New research reveals that lower proportions of specific sleep ...

Apr. 9, 2025 — A collaborative study found that while sleep duration recovers quickly, sleep timing and sleep architecture can take significantly longer to realign when traveling across time ...

Next to REM sleep, which you’ve probably heard of, and “deep” sleep, which feels self explanatory, there’s “core” sleep. And if you Google what core sleep means, you’ll get a ...

Experts recommend consulting a physician if one regularly feels unrefreshed despite adequate sleep duration. Long-term sleep deprivation has been associated with cardiovascular problems ...

Time to give these so-called sleep hacks a rest? The team behind the sleep tracker Sleep Cycle crunched data from over 1 million global users to determine the social media slumber shortcuts that ...

If you’ve ever struggled with sleep (read: if you’re a human), you can probably rattle off at least a few pieces of sage sleep advice: Quit the caffeine in the evening. Turn your bedroom into ...