There are different types of sleep cycles to consider if you have an unconventional schedule or don't need a lot of sleep.

One woman shares about the narcolepsy symptoms that disrupted her life, and the journey to a diagnosis: "I'm living proof you ...

“There are two types of sleep: Non-rapid eye-movement ... to identify any underlying sleep disorders, observe my full sleep cycles and record any abnormalities in my sleep.

Certain types of light can affect your mood and quality ... research looking at the effects of other light colors on our sleep cycles. However, there’s some evidence that warm colors may help ...

Here, Kirsten breaks down the three types of people who can enjoy a cup ... quickly enough that it does not interfere with their sleep cycles," he says. Studies have shown that those with ADHD ...

There are many different types of sleep disorders, which can lead to additional ... to stimulate your body's normal waking and sleeping cycles at the appropriate times. It depends on your ...

Other types of dreams include ... REM sleep lasts only a few minutes early in the night but gets longer in later sleep cycles. Some experts think we spend about two and a half hours dreaming ...

Mammalian sleep consists of cycles between two states ... However, several reptiles exhibit two types of sleep that alternate over a period of about 50 seconds. This suggests that precursors ...