Pillow Dragons are covered in enormous amounts of fur affectionately referred to as fluff. Despite their deceivingly large size, they can still fly even with such tiny wings because their bodies are remarkably light. Pillow Dragons have a habit of sleeping for up to eighteen hours a day, waking only in short bursts. During their few waking hours, they take the time to hunt for prey. Once a pillow dragon becomes an adult, its fur grows very slowly. Pillow dragon fur is used to make very expensive and valuable cloth known as “dragon cashmere.”

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.

Halus spends most of her time sleeping. Because of this she misses a lot of things, including her first and only egg being stolen. Her mate, ZiNariya, still hasn't forgiven her for letting the thief escape unharmed, but Halus doesn't seem to care.

When she's awake the pillow dragon is a ball of fluff and energy. She pesters the other dragons (especially ZiNariya), digs up DaLisay's herb garden, eats anything she can fit in her mouth and plays with the hatchlings until they collapse from exhaustion. Then she goes back to sleep for about a week and the pygmy dragons use her as a bed until she wakes back up and tries to eat them.