Thanks for the great responses, ideas, and owner's manual.
I do think there is a compartment in the back between the 2 beds but I can't get it open without doing some damage. My plan now is to wait until I am somewhere dryer and warmer than it has been in soggy Mississippi, and then try to open compartment. I think the wood just might be too swollen right now. I did swing by Harbor Freight and picked up a scissor jack just in case.
Thanks again the the reaponses!