"Deep sleep builds your immune system, and REM sleep regulates and fine-tunes it," says Darwall-Smith agrees. During deep ...

However, some research shows that major stressors may increase REM sleep but reduce deep sleep. REM rebound, which is when we ...

Researchers sought to better understand the connection between REM sleep patterns in patients with either insomnia or MDD.

Sleep disturbances may accelerate neurodegeneration, but whether they cause or result from disease remains unclear. Improving ...

Sexual activity—whether partnered or solo—improves sleep efficiency and reduces night-time wakefulness, according to a pilot ...

In our fast-paced world, the significance of quality sleep is often underestimated. Yet, sleep is a fundamental pillar of overall well-being, playing a critical role in physical health, mental clarity ...

“Traditional Japanese pillows are filled with buckwheat husks, which mold to the shape of your head and neck, providing optimal support and better airflow. Unlike memory foam, these pillows don’t trap ...

You can work to improve your sleep quality with the sleep cycle analysis that examines your light and REM sleep stages. Withings also tracks your heart rate and detects snoring, so you can ...

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

A new study from The Australian National University (ANU) suggests that poor sleep may contribute to brain shrinkage and ...

Is anyone else feeling like they’re running on fumes? Getting a good night’s sleep can sometimes feel like trying to solve a ...

A Seattle-based sleep physician weighs in on popular sleep hacks touted on social media. Sleepy girl mocktail, anyone?