Sleeping for 7 to 9 hours at night isn't the only way to catch some z's. Here are four alternative sleep cycles -- and they're pretty obscure. Annie Miller Medical Reviewer Annie Miller is a licensed ...

Lindsey Hudson began to suspect her sleep habits weren’t the norm during her freshman year at Southern Nazarene University in Oklahoma. A competitive high school cheerleader, teenage Lindsey—busy with ...

As we sleep, our brain moves through four stages and two phases: non-rapid eye movement (NREM) and rapid eye movement (REM). The brain has four stages within the NREM phase. Each stage and phase of ...

Everyone has heard that it’s vital to get seven to nine hours of sleep a night, a recommendation repeated so often it has become gospel. Get anything less, and you are more likely to suffer from poor ...

Some people are genetically built to require less sleep than the rest of us. Albert Joseph Moore / Public Domain Everyone has heard that it’s vital to get seven to nine hours of sleep a night, a ...

REM stands for Rapid Eye Movement and it’s seen as the deepest stage of the sleep cycle. As the name states, REM sleep is ...

Sleep is increasingly getting the attention it deserves as a pillar of health and wellness: Sleep news makes headlines. Sleep care is starting to gain real attention in the workplace. The importance ...