Sleep trackers — wearable devices that monitor all your vitals — provide detailed summaries of your sleep cycle so you know ...

Weekend sleep catch-up may feel like a quick fix for sleep debt, but it can actually disrupt circadian rhythms and impair your energy.

To put this into perspective, you actually burn similar amounts of calories sleeping as you do sitting down. 'They both burn ...

As well as sleeping on and testing the best mattresses of the year, there are a handful of products our writers and editors ...

Hypnic jerks are involuntary muscle movements that occur when transitioning from wakefulness to sleep, often making you feel ...

How much sleep do you need? Experts break down the real science behind sleep stages, timing, consistency and what happens ...

If you frequently find yourself tossing and turning at night, or waking up hours before your alarm and unable to get back to ...

Discover 7 ways to align your daily habits with your circadian rhythm for better sleep, increased daytime energy, and improved body and mind ...

"Cortisol makes us feel awake and wired" and "increased cortisol levels can contribute to more intense and bizarre dreams," ...

Despite our best-laid plans, evenings can often be swallowed up by work emails, household chores and scrolling like mad on ...

People on TikTok and other social media say they feel more alert when they have had fewer hours of sleep—but sleep scientists warn this is a false sense of energy ...