Granular bedding, also known as deep litter, is a type of animal bedding made up of small particles. The particles can be made from a variety of materials, including wood shavings, sand, straw, and even recycled paper products. Granular bedding is often used in chicken coops and other types of poultry housing because it provides good drainage and ventilation while still being absorbent enough to keep the animals dry. It can also be used for other types of animals, such as rabbits and guinea pigs.