Picked up the 2015 Roo 21SS today..

Here is what I found out, after you take down the support for the tent the mattress folds about in half and atands up by the opening into the bed. Then making sure the windows and all are closed, turn on the "Super Fan" in the ceiling and it sucks all the canvas in on the ends. At this point you go outside push and canvas and the ends fold up with no problem.....Got this idea from the Rockwood/Roo Forum. Works great..

Thanks,
Jim