We've done it both ways, if we need to use tow vehicle for whatever reason we detach, otherwise we quickly drop stabilizers and get some shuteye. When having to overnight when trying to get as far as possible, usually we arrive between 10pm to midnight and just stay attached, have done the same when arriving late at private parks, just hookup to shore power and get some sleep. Whatever the scenario we don't fret the hitching/unhitching process as it takes just a few minutes, it is more a matter of what you personally prefer at the time of arrival.