Yesterday, I performed an experiment on myself.

I have heard pretty much that a cup of strong black coffee at night keeps you awake the entire night. Newbie here when it comes to staying up all night ( I mean I stay up late but never all night) so I decided to give it a go.
I'm unsure about the results though.

First off, how strong is a strong coffee? One teaspoon coffee per cup? Am I allowed to add a teaspoon of sugar?

Next, I think it kinda also have to do with me. I mean, I have heard it doesn't give me sleep so my personal bias affected it. I wanted it to be true. To be a life hack for that huge ass paper due by tomorrow.

Maybe it does work. At around 4 in the morning I was too tired with the shit I was doing so I decided to finally lay down. I recall this brief moment when I was in my bed all ready to sleep and the sleep wouldn't come. Maybe that's the coffee working. But again, it could just be normal.

Does it not work? If it does, how do I make it work? 😣