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Do you find it hard to fall asleep?

If you do, you're not alone.

Roughly 46 million Americans say they have trouble nodding off, according to the Centers for Disease Control and Prevention. Have you

tried lowering the room temperature, doing breathing exercises, sticking to a schedule, turning the lights off earlier, stretching before bed,

not eating before bed, quitting coffee, aromatherapy, drinking warm milk, listening to whale songs?

Well, if none of those help, turns out there's tech for that. Sleep tech isn't new.

Apps like Headspace and calm have libraries

of exercises and guided meditations that aim to help users fall asleep. There are trackers

that help you use your data to plan for better sleep. There are mattresses that heat, cool,

raise, and lower your body to help you find your optimal sleep position and temperature.

But what if this still isn't enough to calm your racing mind and convince your body and brain

that it's time to sleep? From the Wall Street Journal, this is the future of everything.

I'm Charlotte Gartenberg. Today, I'm talking to WSJ Science Bureau Chief Joe Craven McGinty

about new wearable sleep devices that target the brain with both sound and light to improve our sleep.

A good night's rest after the break. Neuroscientists have been studying brainwave modulation for a decade or more. I spoke with our

Science Bureau Chief Joe Craven-Maginty about how sound is being used to modulate our brain

...