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 ...

REM (rapid eye movement) is the part of your sleep cycle that is essential for memory consolidation, emotional processing and creativity. Alcohol is known to reduce REM sleep resulting in grogginess, ...

REM sleep — when we dream — can last anywhere from 10 to 60 minutes. Though that obviously means the length of an entire sleep cycle can vary, the average duration is an hour an a half ...

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 ...

Dogs may look adorable when they snooze, but their sleeping habits actually hold fascinating clues on how living with humans ...

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 ...