The study, published in the Journal of Clinical Sleep Medicine, found that lower levels of REM and slow-wave sleep were ...

That theory posits that, if memories were shrubs, the non-REM phase of sleep helps them grow taller and stronger. The REM ...

A team of Northwestern investigators have developed a wearable and wireless sleep monitoring device that provides an in-depth ...

Although we know sleep is essential to our physical and mental well-being, it remains an incredibly enigmatic behavior, ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." (Leah Abucayan, ...

A newly identified brain circuit in mice may explain why we sleep longer and deeper after being sleep deprived – and lead to ...

REM Sleep Behavior Disorder causes more than dream enactment—it’s a powerful clue to neurodegenerative disease risk.