"If looks could kill," wrote another TikToker reacting to the video. Other pet owners said that cats having a noisy reaction to hanging out on the exercise wheel isn't that unusual.

Sleeping on their left sides keeps the right side of cats' brains alert and ready to detect immediate threats, scientists say ...

If you've ever adopted a kitten, you already know that this typically happens around the time they turn six to eight weeks old, when they have weaned and no longer depend on their mothers to survive.

Cats sleep with their head's up as a leftover predatory trait from their wild days. ... While It Looks Uncomfortable, It's Probably Fine If Your Cat Sleeps With Their Head Up.