Expandable vehicle shelter system and method

An aftermarket truck shelter system configured to removably couple with a bed of a truck, the aftermarket truck shelter system comprising:

• a top portion that includes:
• a first and second hatch on opposing lateral sides of the top portion, the first and second hatches configured to open outward to define respective first and second compartments on opposing lateral sides of aftermarket the truck shelter system that are defined at least in part by the first and second hatches and a respective first and second curtain that extends from the hatches;
• a bottom portion that includes:
• a first and second foldable platform on opposing lateral sides of the bottom portion and respectively defining a portion of the first and second compartments;
• and
• wherein the top and bottom portions are slidably coupled such that the top and bottom portions are operable to:
• assume a collapsed configuration with the top and bottom portions nested together with defining a shelter cabin having a first volume, and
• assume an extended configuration having the top portion extending upward with the shelter cabin having a second volume that is greater than the first volume.