A sleeper bunk restraining system includes a sleeper bunk configured to be carried by a vehicle and having a top surfaced defining a length upon which an occupant may rest. The bunk includes a stationary portion and a moveable portion defined along the length, and the moveable portion is movable toward the stationary portion to form an occupant restraining barrier. A restraining member may be included and is configured for releasable connection to the vehicle such that the restraining member restrains movement of the movable portion of the bunk relative to the stationary portion of the bunk to thereby maintain the occupant restraining barrier in an occupant restraining position.