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.

Sweetest Dreemes likes to drop happy thoughts and daydreams to the waking world below. She is nomad by nature, and doesn't like to settle in one place. She has a cloud she likes to always return to, and likes to perch upon it after a long day. She occasionally returns to the cave where she was found, hatched, and raised, though her stays don't tend to be long as she had forgotten what it was like to be surrounded by hordes of dragons. She fell deeply in love with Slumbar Dreemes, however, and now spend their time traveling the world working in tandem to send the sleeping and waking world happy, calm, and sleepy thoughts.