A mere furball horked from Bored Panda’s 30 image complilation of komatose kitties.
A female Amethyst-throated Sunangel (Heliangelus amethysticollis) sleeps in Peru. Apparently, the background hum is the sound of a generator attached to a machine measuring how much oxygen the bird is consuming.
Future studies will reveal how hummingbirds also fart and scratch themselves in the night.
Seriously. Keep that thing away from my choc ice.