Abstract: A sheet set is disclosed that facilitates mounting on a mattress of a bunk bed. The sheet set comprises a base sheet for mounting on the mattress, and includes a base panel with a top portion, a pair of opposite side portions and a pair of opposite end portions. A cover sheet mounts on the base sheet when the base sheet is mounted on the mattress to cover the base sheet, and has a closed side and an open side located opposite of the closed side. The cover sheet has a closed end and an open end located opposite of the closed end, with the closed end and the closed side being located adjacent to each other to form a pocket for receiving the corner portion of the mattress. Optionally, the cover sheet includes a flap that extends adjacent to the open side of the cover sheet for being folded back onto a top portion of the cover sheet.