Are you getting enough sleep at night? Do you have problems falling asleep or staying asleep? Do you feel sleepy during the day? According to the Centers for Disease Control and Prevention (CDC), ...

Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday. If dark ...

The ideal time is before 2pm – napping too late can push back the body’s natural sleep schedule. The best naps happen in a cool, dark and quiet environment, similar to nighttime sleep conditions.

Time to give these so-called sleep hacks a rest? The team behind the sleep tracker Sleep Cycle crunched data from over 1 million global users to determine the social media slumber shortcuts that ...

And while she swapped her usual sparkly red carpet fare for something subtler — a long-sleeved black sweater and plaid ... Swift led this year’s iHeartRadio Music Awards nominations with ...

After retiring the last two tests, Fitbit is back with the Personalized Sleep Schedule Lab. As we previously spotted, this Fitbit Lab “surveys your energy levels multiple times daily to analyze ...

Some scientists think so, but others have challenged the claim that so-called "dark oxygen" is being produced in the lightless abyss of the seabed. The discovery -- detailed last July in the ...

Epic Universe’s castle can be found in the Dark Universe area of the park. The area is dedicated to classic Universal Monsters, and as such, it looks more like the original Sleeping Beauty ...

Sleep is still a mystery, despite how critical it is for our health. Most of us spend roughly one third of our lives sleeping, but you may need more or less than eight hours a night. Here’s what ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Whether it’s an old-fashioned, a hot toddy ...