system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it easier to fall asleep to background noise (radio, TV etc.) than just the plain dark?
gpt
This happens because when there's noise around us we feel that someone is near us.
Thus we feel safe and can let go of the tension and fall asleep.
This is an evolutionary thing and has been embedded in our DNA. Humans are primarily social animals and keep each other safe.