Shakespeare was married to Anne Hathaway wrote most of his poetry to her, had children, etc etc. Now he is outed as Gay. I have never seen evidence for that. I hate this nonsense it is the same crap that got Richard the LionHeart outed because he slept in the same bed with a man (common medieval practice in no way sexual) and because he wrote about his love for another man (another common medieval practice and not an expression of sexual love).
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."