Tired of being tired in the morning? When you have to fight to get out of bed, it can set a bad tone for the rest of your day. That sluggish state that's hard to shake? It's called sleep inertia, and according to University of Pennsylvania's Division of Sleep and Chronobiology, it's what is responsible for making your morning a long, groggy chore. Not surprisingly, the most common reason people struggle through this morning fog is that they're not getting enough quality sleep. But there's actually a scientific formula to waking up, and a few changes to your daily routine will keep you from dragging in the morning.