Seperate sleeping bags?????
Hu'uh... That would never do. If I wanted to "tickle her fancy", my arm does not maneuver like a snake...
For the bathroom stops, may I suggest a trip to Wal-Mart and pick up a "PORT-A-POTTY", along with a box (or bottle) of the "enzyme additive". ( Last I remember, they do come with full instructions, I should not have to expound on the use.) The bioligical requirements of two people aren't always in sync, and at times it may become quite essential.
After my wife's rectal cancer, it became far more important than the fresh water for the coffee-maker. We would empty it when it was a little over half full, that way it was lighter to carry to the bathrooms and flush the contents. Try it and, I believe, you'll find that it works far better than having a bottle of "recycled" apple juice.
Five thousand miles and we haven't killed each other or contracted cholera. Success.
