When I stayed there last year, as you enter the room, you go down a short hallway and the bunk beds are kind of 'in-the-wall' on one side of the hall. The short hallway then opens to where the other beds are.
There are 5 in our family and it was a pretty good set up. Highly recommend the property. Can't give you advice on upgrades...was there during a medical convention and the SEC coaches conference, so most of the good rooms were already taken.

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