But how do sleep cycles work? To find out, I took part in a polysomnography. This is a gold standard sleep study that helps ...

New research suggests that people who take significantly longer to start the dream phase of sleep may be showing an early ...

Night terrors tend to happen in a sleep stage known as deep sleep, rather than when in REM, which is when nightmares happen.

Is the much vaunted eight hours of sleep enough to avoid health issues? Experts discuss why its important to wake up feeling ...

Researchers from ISTA discovered that sleep helps solidify spatial memories by reorganizing neuronal patterns. During non-REM ...