To everyone replying - "i can sleep even after drinking 100 coffees" - caffeine consumption affects certain stages of your sleep even though you might fall asle

To everyone replying - "i can sleep even after drinking 100 coffees" - caffeine consumption affects certain stages of your sleep even though you might fall asleep, source is the book 'why we sleep'. All stages of your sleep are important, so if you are only getting rem sleep it is not good.