Just another option to look at other than a rooftop tent. http://www.nissanpatrol.com.au/forum...ad.php?t=26233
We were in the same sort of situation, wanted something that was quick and easy to setup, and also needing something that was big enough to sleep the 5 of us comfortably. Thought about a rooftop tent but didn't want to have to pack it all up if we decided to go for a drive and didn't really want anything that was going to be pretty much permanently installed on the roof.