Bary,
I know of a couple that lived on a R22 for 7 months. Granted, they were  very 
good friends considering they were married, but they managed. In order to  
get enough room for both to sleep comfortably, they extended the V berth with an 
 additional support board which went over the top of the conventional 
porta-potti  head area and all the across. They made a cushion for this extension and 
with  the pop top enclosure, they were snug as bugs in a rug.
My wife and I don't like the confines of the cabin. We use the cockpit fill  
in cushions and make our bed in the cockpit. Much more room and the stars are  
fantastic. That way we don't have to move the potty and the cabin can be used 
in  the morning without disturbing the other person. Nothing worse than 
sleeping  with your head directly over the head.
 
Rummy