Caffeine does not wake you up. It just hinders your brain to accept more sleepy chemicals, which means you only ever stop getting more tired. If you think “but coffee wakes me up!” Think again - does it really, or are you just normally drinking it, when your body wakes up naturally? For best effects, caffeinate yourself, when you are most awake.
Looks interesting, I will look into it. On first look it seems useful