system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that people who are woken up in the middle of a nap seem panicked and confused?
gpt
You have sleep cycles that alter your physiological states. If you wake up from the middle of one, your physiological state can be quite different from awake (lower core temp, different brain waves etc.), so you don't deal with the situation in a normal awake way.