While you might think your purring pal has strange sleeping habits (can running on the bed at 4 am really be considered normal?), certain behaviors can be explained.
Hunting behavior goes hand in hand with protecting themselves against predators. So, your pawful sleeping partner is vulnerable when engaging in a cat nap.
As cats tend to sleep next to their owners as a sign of affection and comfort, it’s safe to consider that your feline friend will be protective of you when on a nightly guard.