How much do you really know about sleep and sleeping? We’re living in a time with Siri, that Amazon Echo thing, and whatever Vine is, yet we’re still studying the science of sleep. Sleep incredibly mysterious and important to your health and well-being – so much so that we’re still studying it like it’s an ancient and powerful magic. It’s something we all do every day and is more vital to our mental and physical well-being than eating – but what should you know about sleep? How much should you sleep? What other sleep facts should all humans keep in mind when head hits the pillow? You’d think something we spend years doing would be pretty well-established by now, but it’s not. Every year we discover new facts about sleep, why we do it, and how it affects us. We’ve made more advances in our knowledge of sleep in the last 25 years than in all prior years, but there’s still much more digging to do.