"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 ...

More people are becoming obsessed with sleep trackers, causing insomnia and making sleep worse, experts say. Here’s how to ...

For the purists who don’t need bells and whistles, these capsules are the answer. No weird additives, just potent, organic ...

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

Drinking alcohol before bed raises blood alcohol content, which disrupts rapid eye movement, or REM, sleep, a critical phase ...

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

To this point, a TikToker recently documented her so-called "sleep detox," abstaining from sleep for an entire week in an ...

Sleep trackers examine all aspects of your sleep from your heart rate to your snoring, helping you create a better sleep ...

Most people spend a third of their lives sleeping, but you may need more or less than eight hours a night. The amount of ...

Acts like a tracker you don’t have to wear Ensures you sleep at the perfect temperature 10-year warranty for the cover ...