I have recently bought a Vango Yukon 800 did a practice pitch yesterday. The bedrooms are huge they are divided with a curtain down the middle and i am sure they will still fit a double air bed in each side. You can use both bedrooms and then enter at the side or just one bedroom and add a canopy to give a huge living area. It was easy to pitch it took less than 40mins first time so will try to reduce that next time. We are hoping to use it 20th -22nd June for a dress rehearsal and then have big trip in July. I'll do a proper review then.
I have a Yukon 600 and while I haven't actually used double mattresses, I reckon you could get 3 doubles in, 1 in the small end bedroom and easily 2 in the main bedroom area
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