Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

Some animals can sleep with just half their brain at a time. Understanding this phenomenon can help us learn more about human ...

For the first time, scientists have discovered that a small region of our brain shuts down to take microsecond-long naps while we're awake. What's more, these same areas 'flicker' awake while we're ...

On average, a person burns 40–80 calories per hour while sleeping. Your body requires energy for all its functions, from breathing and circulating blood to digesting food and even thinking. This ...

Most people think sleep is just downtime, but turns out your body is actually pretty busy while you’re sleeping. Your metabolism doesn’t just clock out when you fall asleep – it’s more like switching ...

Sleep and wake: they’re totally distinct states of being that define the boundaries of our daily lives. For years, scientists have measured the difference between these instinctual brain processes by ...

Have you ever been so exhausted that you feel basically half-asleep? Turns out, that may be what’s literally going on in your brain, according to a new study published in Nature. In a study of rats, ...

We’re continuing to learn more about the stimulating effects of blue wavelength light and its capacity to disrupt sleep. Exposure to artificial light at night is recognized as a hazard to sleep, ...