A shelter including a supporting component having a main supporting surface configured and sized for supporting a human in a sleeping position, the supporting component defining substantially opposed supporting component first and second longitudinal ends; a first end wall and a second end wall provided respectively at the supporting component first and second longitudinal ends; and a roof movable between a closed configuration and an open configuration, wherein, in the closed configuration, the roof is overlying the main supporting surface, and in the open configuration, the roof is at least partially retracted from the main supporting surface to allow outside access thereto.