Troops aren't getting enough sleep, and they're fighting through with jolts of caffeine. DARPA, the Pentagon's research arm, ...

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

Great sleep is about more than just quantity – quality matters, too. We learn the benefits of getting a good shut-eye and ...

Learn about the key differences between hypersomnia and narcolepsy, their symptoms, treatments, and how they affect daily ...

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

“REM sleep is when your emotions are regulated. So, if you wake up early, if you wake up the next day, you didn't get too much sleep, what do we think? We're like cranky, right? “If you feel ...

Sleep trackers — wearable devices that monitor all your vitals — provide detailed summaries of your sleep cycle so you know how many hours of REM ... which are much later than expected ...

“For REM sleep behavior disorder, it can be much higher, on the order of 10 to 15 milligrams.” If you’re struggling with sleep due to taking beta blockers, he says that taking between 2.5 to ...

“For REM sleep behavior disorder, it can be much higher, on the order of 10 to 15 milligrams.” If you’re struggling with sleep due to taking beta blockers, he says that taking between 2.5 to ...

A variety of metrics are typically used to measure REM sleep, including eye movement. “People get really excited or upset about how much REM sleep they are getting or how much deep sleep they ...

Blood pressure and heart rates also increase to near-awake levels in REM sleep. It's no surprise that with so much near-wakefulness, this stage is when most of your dreaming happens. Fun fact ...

Paradoxical insomnia describes the feeling of not getting restful sleep even if you really did sleep enough. Confused? Here’s ...