Spending eight hours doing absolutely nothing but lying down seems like a colossal waste of time, doesn't it? Those eight hours could be spent running around on area trails, mountain biking, traveling, or doing anything else that sounds like a good way to spend a third of your day. But really, getting enough high-quality sleep is essential. Though you're lying down, your body's still hard at work repairing itself and preparing you for the next day. Not only that, studies have shown that pulling an all-nighter put you in the same mental state you'd be in if you were legally drunk. The folks at Frugal Dad put together a super fancy infographic to help show us why sleep matters.