Open the vents on the bedroom unit, i think the book calls them quick cool. The vents are on the A/C unit they slide to open, there are three to open. When these vents are open the air doesn't go into the vents.
You will Freeze when in the bed, I know (Love it too). Wife hates to have the upstairs unit running. The thermostate is at the closet. Hope this helps.
Wayne & Marti ....Yogi the spoiled Dog
2012 Ford Lariat 4WD PSD Dually LB, Aux Tank 50 gal
2010 Designer 37 RLQS, 5th Airbourne w/Sidewinder