A bed system is disclosed. The bed system may include a perimeter support and associated bedding and may be used by a person or an animal. The bedding may include an upper cavity to receive the support and a lower portion configured with a perimeter zipper. By closing the zipper, the support transitions from a linear configuration to an arc-shaped configuration defining the perimeter of the bed. The inner region of the bed comprises soft ruffled material formed by the gathered lower portion.