Even if you're not getting any sleep — especially if you're not getting any sleep — a sleep tracker can help. Every night when you sleep, you go through four distinct sleep stages in roughly 90-minute ...

As we sleep, our brain moves through four stages and two phases: non-rapid eye movement (NREM) and rapid eye movement (REM). The brain has four stages within the NREM phase. Each stage and phase of ...

Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

Automatic sleep stage classification using neural networks represents a significant advancement in sleep research, providing a robust alternative to traditional manual scoring methods. By leveraging ...

An international consortium of researchers has created the largest-ever database compiling records of brain activity during sleep and dream reports.

Over one-third of Americans use some sort of device to track their sleep, according to the American Academy of Sleep Medicine. CREDIT: whitebalaance.space via Getty Images. Get the Popular Science ...

Caroline Igo (she/her/hers) was a wellness editor at CNET and holds Sleep Science Coach and Stress Management certificates from the Spencer Institute. She received her bachelor's degree in creative ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. When jolted awake by the blare of an alarm ...