Great question, in that all the times I stayed there I don't ever recall being in a standard room with two beds
However, I once stayed in a suite that did (not much help to you I guess) but there are 'family rooms' - I forget the number sequence but they're on the inside corners furthest from the elevators (x31 or x33 maybe?) - which have a bed and a sofa bed. I drew the short straw for the sofa bed, but it was substantial enough to make it comfortable - relatively speaking compared to a real bed of course. Maybe one of those rooms would work for you if you can get one?