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 ...

When you wake up in the morning, it might feel like your brain just switched on at the ring of an alarm, although you still ...

Your nightly sleep cycle plays a key role in the quality of your sleep. Here's what happens in each stage and why it matters ...

While quality sleep is usually associated with 8 hours in bed, some people still wake up feeling more exhausted than before.

Time to give these so-called sleep hacks a rest? The team behind the sleep tracker Sleep Cycle crunched data from over 1 million global users to determine the social media slumber shortcuts that have ...

Researchers trace how different sleep stages may fine-tune what we remember, trading specifics for more general knowledge.

With daylight saving time fast approaching, our sleep cycles are about to get thrown for a loop. But don’t panic — you don’t have to rely on pharmaceutical sleep aids that leave you groggy or tired.

Ever reached a point where you've scrolled social media on your phone for so long before bedtime, you feel foggy, overstimulated, anxious and struggle to get to sleep? It may be that you, and your ...

People who find themselves waking up in the middle of the night could enhance their sleep by making a minor adjustment to their bedtime routine, according to an expert. Insomnia can strike anyone, ...