Daydream Dragons are the hosts of daydreams and fantasies. They spend the majority of their time sitting on clouds, dropping daydreams down into the minds of people passing by. Humans who live near Daydream Dragons must be especially careful not to let their thoughts wander, or they could end up spending hours or even days in a trance-like waking dream state.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Nightling Dreamer never comes out in the day, even though his entire species is known for giving lovely daydreams to others.

He doesn't give daydreams—no, his entire life is made up of passing through the skies when the moon is full and the darkness hides the vibrancy of his scales. He leaves his "signature" in all of the dreams he gives to the humans and Keepers he passes his dreams onto—a small cloud that wisps through the sight of the dreamer moments before the dream ends, leaving a vaguely bittersweet feeling.

A few other dragons say that the night possesses his mind, and he can't break free, which is why his behavior is so erratic.

They can't ask him anyway. He's never seen in person.