Franklin and Adams shared a bed on occasion...like you said, things were a bit different back then.
In Moby Dick (maybe bad example...:)-
"I told him that I never liked to sleep two in a bed; that if I should ever do so, it would depend upon who the harpooneer might be, and that if he (the landlord) really had no other place for me, and the harpooneer was not decidedly objectionable, why rather than wander further about a strange town on so bitter a night, I would put up with the half of any decent man's blanket."
Jeez, that looked like it was the intro to "Brokeback Ocean"