Triple Bunk Beds

I am trying to find a stretcher / triple bunk beds bed type for camping. Does anyone know who can do and where I could buy? Google search does not find much to help me, but I'm sure I heard about triple.

Thank you

I think three beds are not produced because of safety issues and liability. The best you can do a double.

I know they are bunk beds with trundle bed third type coming from under the bottom bunk, but not for camping, unfortunately.