REM sleep plays a crucial role in our physical and mental health. For Sleep Week, we speak to the experts to find out how much we need to function well.

According to Healthline, if you’re aged 18–60 and are sleeping for 7–8 hours per night but are not waking up feeling ...

Depending on their age, a person needs 7–17 hours sleep in every 24 hours. But, just sleeping is not enough. Deep sleep is essential for health and wellbeing. Most adults need around 1.5–2 ...

REM sleep is essential for your health and so is ensuring you get enough of it. Here’s how to get more. 1. Set a sleep ...

REM sleep is closely associated with cognition and emotions (not to mention vivid dreams). Meanwhile, deep sleep is crucial for immune function, physical restoration, and general well-being.

You may be able to increase the amount of REM sleep you get by following a sleep schedule daily, getting regular exercise during the day, and meditating, among other steps. Insomnia, undiagnosed ...

In other words, these orexins encourage neuron activity so that REM sleep is blocked and you’re awake and alert. This isn’t the case when you have narcolepsy with cataplexy.

During REM sleep the brain processes memories, especially those that are emotionally charged, and puts them into long-term storage. “The delay in REM sleep disrupts the brain’s ability to consolidate ...

What new research on the avian brain and REM sleep in birds might reveal about our own dream lives. By Maria Popova I once dreamed a kiss that hadn’t yet happened. I dreamed the angle at which ...

REM follows three phases of non-REM sleep, each deeper than the last. The four phases take 90 minutes or more to complete, depending on age, and a person may cycle through them four or five times ...