Do Coca-Cola and Pepsi keep you awake or make you fall asleep?

Short Answer: They will keep you awake. Why? It contains Caffeine,which is considered a stimulant, meaning it causes a reaction in your body that can speed up your central nervous system, making you feel more awake and alert. read more

The caffeine content would definitely keep you awake, much in the same way as would drinking coffee, although not to the same extent. Caffeine affects people in different ways, for example, I can drink a can and still fall asleep relatively easily where someone else might find sleep difficult. read more

In fact, Pepsi will just give you short bursts of sugar highs and then you'll crash and be tired after the sugar high wears off. I took a road trip to Vegas once and I tried the Dr. Pepper method. I had to drive straight home because I had work obligations (it was a 16 hour drive). read more

Coca-Cola was started in 1886 and Pepsi in 1898 and for many years they went back and forth taking pokes at each other via their advertising about their price, value, and packaging. Even, its hard to compare the two companies. read more