Sleep

Woman texting and reading on smartphone in bed

Forget What You Think You Know About Blue Light and Sleep

It's become a virtually unchallenged piece of conventional wisdom that expo...

It's become a virtually unchallenged piece of conventional wisdom that exposure to blue light—the type emitted by electronic device screens—is bad for sleep. That thinking has spurred a mini-industry of innovations meant to stop those...

The Sleep Habits That Can Improve Your Grades, According to a New Study

Here's how sleep influences grades

Go Ahead, Take a Nap. A New Study Says They May Be Good for Your Heart

Sweet dreams

The Science Behind Fever Dreams

Nearly everyone has experienced a fever and its attendant symptoms—from fat...

Nearly everyone has experienced a fever and its attendant symptoms—from fatigue and body aches to hot flashes and chills. You may also have noticed strange or unusually vivid dreams while trying to sleep off an...

Why Not Everyone Should Sleep with a White Noise Machine

Sleep sound machines—producing white, pink, or brown noise—can be indispens...

Sleep sound machines—producing white, pink, or brown noise—can be indispensable for some. But the science shows they aren't for everyone.

A Sleep Number X12 bed on display at the 2014 International CES at the Las Vegas Convention Center on Jan. 7, 2014.

A Wake-Up Call On Smart Beds And Sleep Apps That Collect Your Data

Your bed could be watching you. OK, so not with a camera. At least not yet....

Your bed could be watching you. OK, so not with a camera. At least not yet. But if you have any of a variety of “smart beds,” mattress pads or sleep apps, it knows when...

Can You Really Catch Up on Lost Sleep? Here's What the Science Says

Plus, the best way to stay well-rested