Stop blaming the water: here’s the real reason you wake up at 2 a.m.

You go to bed exhausted, ready to enjoy a long, restful sleep… and yet, at exactly 2 a.m., your eyes open as if an invisible alarm clock has gone off. Frustrating, isn’t it? We often think, “It’s because I drank before bed!”, but behind these nighttime awakenings lies a set of everyday mechanisms, often overlooked. And the good news is: understanding what’s going on can already help improve your sleep.