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.

Harvested appears to be much larger than the average Pillow, which is a common misconception, because Harvested possesses the same bodily mass as any other Pillow. However, he has much thicker fur. Instead of shedding his shaggy coat, he just grows more fur. His fluff is layers deep, from the silky outer coat to the coarse layer beneath, all the way down to the gentle downy fuzz that sprouts in smaller areas beneath his hair. As a result of having so much fur, Harvested is constantly overheated, so he prefers cooler weather. In addition to this, his favorite season is Winter, which comes as no surprise. In the Summer, Harvested's fur is sheared and used to make blankets which are used later in the Winter. By then, his fur has grown back thicker than before.