In A Nutshell Pink noise at 50 decibels reduced REM sleep by 19 minutes per night in healthy adults, potentially affecting ...

Sound machines promise better sleep, but new research suggests they may quietly steal your REM and deep sleep.

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 ...

Pink noise—often used to promote sleep—may reduce restorative REM sleep and interfere with sleep recovery. In contrast, ...

A 2021 phone poll revealed that only 34% of Americans "sometimes" remember their dreams. About 1 in 10 say they "almost always" can, and the same percentage say they "never" do. Explanations for such ...

Deep REM sleep is where your mind resets, your mood stabilizes, and your skin and body recover in ways daytime habits simply can’t touch. It’s the phase that supports memory, emotional regulation, and ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Need another reason to prioritize your sleep ...