Caffeine and napping have something in common. Both make you feel alert and can enhance your performance, whether that’s driving, working, or studying. But some people are convinced that drinking a coffee before a nap gives you an extra zap of energy when you wake up.

How could that be? Is there any evidence to back the power of these so-called coffee naps? Or are we better off getting a good night’s sleep?

Read more at Inverse.