We've all been instructed in the "golden rule" of sleep: aim for 7–8 hours at night. But what if you're getting your 7 hours and waking up feeling as though you were broadsided by a somnolent freight train? You’re not imagining it—sometimes 7 hours just isn’t enough for…

We often think of sleep as “downtime,” but in reality, it’s one of the most active and important processes for your brain and body. High-quality sleep supports memory, focus, mood…