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

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

Drinking alcohol might appear to help you fall asleep initially, but it diminishes your quality rest. These nighttime tips ...

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

We know firsthand that shopping for the best pillows on Amazon can be a stressful experience—over 100,000 results come up when you search “best pillows” on this mega-store. To make your next buy a ...

The gender sleep gap means women don't get as much quality sleep as men. I spoke to nine women to hear their stories for ...

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

It’s also when “growth hormone” is released. In the latter hours of the night, more of the sleep cycle is spent in rapid-eye movement sleep, or dream sleep, which is important for learning ...

or REM, sleep, a critical phase of the sleep cycle responsible for cognitive functions such as memory, concentration and mood regulation. During the first three to four hours of sleep, alcohol is ...