9 game-changing gadgets that will help you sleep better

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Scientists still don't fully understand sleep, but it's clear that getting enough of it is very important, since being well-rested comes with a myriad of health benefits.

For the 40% of the US population that gets less than seven hours per night, there are plenty of devices, both physical and digital, that can help you snooze better.
Give one of these a try.