Nightmares

“nightmares” are creatures that leach off and grow from peoples subconscious. 

They’re form is based of the mental stability of the person they feed off and the vividness of the person’s imagination.

They usually have a darker palette. They’re meant to represent the bad feelings of the host.

People who experience psychosis have these creatures grow powerful enough to abandon the host and go into the outside world. This is painless for the host and often goes unnoticed.