system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come animals tend to fall asleep relatively faster than humans do?
gpt
A lot of factors affect human sleeping patterns, of which animals don't experience.

* stress
* smart phone / computer screen affecting the brain
* caffein consumption near sleep time

things like that, you can even include existential crisis episodes while in bed, and the embarrassing shit your brain won't let you forget.