ZZZ

This emoji represents sleepiness or being asleep. It's derived from the common comic book representation of sleep, using "ZZZ".

It's frequently used in messages and on social media to express tiredness or sleepiness. It's often used in sleep-related situations, like saying "Good night" or "I'm so sleepy."

This emoji originates from the common depiction of sleep in comics and animation worldwide. In particular, American comics have a tradition of drawing multiple "Z"s above a sleeping character, which evolved into this emoji.

In modern society, lack of sleep and fatigue have become global concerns. On social media and messengers, this emoji is used not only to express sleep but also boredom or indifference. It's especially popular among Gen Z as a way to express apathy or being bothered.