Between wearables and phone apps, a growing number of tools claim to track your sleep. But experts say trackers can only go ...

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.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Jim McCauley While ...

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 ...

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 ...

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 ...

Sleep can, at times, be quite elusive. And if you’re a someone who has a monthly cycle (aka a period), you may notice that it’s consistently harder to get quality sleep at certain points over the ...

A study of 89 adults found that brighter, more consistent daylight exposure was linked to earlier sleep timing and more deep sleep at night.

Smart ring maker Ultrahuman is launching a major new feature focused on respiratory health, partnering with sleep tracking giant Sleep Cycle to detect snoring and coughing via the Ultrahuman Ring Air.