A multiple sleep latency test (MSLT) is an objective way to measure sleep quality. It helps diagnose narcolepsy and insomnia.

A new study suggests afternoon naps boost the brain's problem-solving skills, with rapid eye movement (REM) sleep – the ...

If you avoid naps out of fear you’ll wake up feeling more tired than you did pre-nap, you’re in luck. One sleep expert has shared his tricks to ensure you have the perfect nap and wake up refreshed ...

If you struggle with ED, you’re not alone — data suggests this medical condition affects around 30 million men in the U.S. And while there are many causes of ED, you may share one problem that’s ...

While extra sleep can temporarily ease fatigue, it doesn’t reverse the cognitive and metabolic damage caused by chronic sleep ...

Your brain’s natural rinse cycle flows while you sleep. A new study suggests certain medications interfere with that ...

When you're dreaming, your eyes don't know you're asleep. Michael Timothy Smith, MA, PhD, director of the Behavioral Sleep Medicine Program at Johns Hopkins University, explains in this Ask the ...

A study on dream recall involving 217 adults revealed that attitudes towards dreaming, mind wandering, and sleep patterns affect memory.

In the first three non-rapid eye movement (NREM) stages, your body temperature lowers and your heartbeat slows down. Sleeping ...

Dr Charles Puza told his 811,000 followers on Instagram how to calculate their perfect bedtime to stop feeling groggy after an eight hour sleep.