You might already know adults typically need at least seven hours of sleep each night to function at their best – but a good night's rest doesn't just depend on the number of hours you spend in bed.

The Brain's Cleaning Shift Only Runs at Night During deep sleep, specifically the slow-wave stage that dominates the first ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Sleeping and waking up at different times is associated with an increased risk of heart attack and stroke, even for people who get the recommended amount of sleep, according to new research. While ...

Add Yahoo as a preferred source to see more of our stories on Google. While I've been writing about sleep for the last three years or so, I've never really felt the need to pay that much attention to ...

Natural Cycles has launched Sleep Insights, a new feature that brings sleep tracking and menstrual cycle data together in one place. The addition is designed to help users better understand how ...

NEW YORK, June 16, 2026 /PRNewswire/ -- Natural Cycles, the company behind the first FDA-cleared birth control app, announced today the launch of Sleep Insights within the Natural Cycles app. The new ...

Tracking 42,759 menstrual cycles with wearable devices, researchers uncovered how sleep patterns, age, and physiology intertwine, revealing that even modest sleep disruptions may be linked to ...