2nd AC in bedroom or garage if using for sleeping?

The new style 15000 btu A/Cs only pull 10 amps running and 13 on startup. The 5500 onan or 50 amp service will power all 3 and then some. As for the original question--that's impossible to answer. The bunk room merits another unit as it is a large volume of air to cool, the master makes its own case as that's where the one who pays the bills sleeps. I couldn't decide either so I ordered all 3 on my 2015 Seismic 3902.