the u201c shelter configuration u201d in the shelter configuration the mobile shelter 100 provides a living space sufficient for a human adult to lie down in several embodiments the shelter can accommodate 2 3 individuals as illustrated in the embodiment shown in fig2 the first frame 110 hinges relative to the chassis 106 such that the first wall 140 serves as an extension of the base 109 in several embodiments the first and second frame may optionally be positioned in a similar manner in the shelter configuration e g both positioned substantially co planar with the base 109 as illustrated in fig2 in some embodiments the second frame 115 is moved about the hinges 113 to allow the second wall 142 to further extend the sleeping area available for the occupant alternatively one frame may be positioned substantially co planar with the base 109 while the other is maintained in a position perpendicular to the base 109 in the embodiment illustrated in fig2 compartments 146 148 function as supports for the first and second frames 110 115 and the compartments 146 148 are sized such that the first and second frames 110 115 are substantially co planar with the chassis 106 and such that the first and second walls 140 142 are substantially co planar with the base 109 a variety of mechanisms can be used to support the first and second frames 110 115 when the mobile shelter 100 is in its shelter configuration to provide a sleeping surface which comprises the base 109 and optionally the front wall.