Why do some cartoons show characters with red eyes and insomnia when they sleep?

It could be to show they're overworked or haven't slept well. Maybe to add a sense of exhaustion or stress to the character.

It's usually to give a visual indication of the effects of marijuana. Red eyes are a common stereotype associated with its use in such depictions.

It could be for creating a dramatic or scary effect. Maybe to show that the character has gone through some intense trauma or is in a dangerous situation.

It could be for showing relaxation or sleep. Sometimes it's a way to convey a peaceful moment for the character.

It could be to show sadness or emotional distress. Maybe the character has lost something or is facing a tough situation.

Well, in cartoons, eyes rolling in sleep might be used to add a comical or exaggerated effect. It's a visual cue to show that the character is really out of it and in a state of total relaxation. Also, it helps make the sleep scene more visually interesting and recognizable for the viewers.

Often, in cartoons, having characters with closed angry eyes is a way to visually emphasize their emotional state. It can make the anger more pronounced and easier for the audience to understand. Maybe the character is trying to hold back their rage or is so angry they can't even bear to look.

It might be to imply that the character is in a sort of trance or not in a normal sleep state. Or maybe it's just a visual gimmick the creators use to make the cartoon more memorable and different.

Maybe it's to show a certain emotion, like being in pain or concentrating hard.

It could be to convey a sense of pure joy or relaxation. When eyes are closed while smiling, it might suggest a deep and unguarded happiness.