I remember back when we lived in a mobile home in the '70s, and kept all of our snakes in the spare bedroom. We were in our 20s - young and carefree, lol!
We had a big, walk in cage with several medium sized boids in it, including a young anaconda, retic, boa, Burmese (hey - it seemed like a good idea at the time!!). We also had a number of venomous snakes, such as tree vipers, rattlesnakes, and a cobra, all in individual cages.
One day, Bill got up early because he had to ship out one of the bigger snakes to somebody. An hour or two later, I suddenly woke up as I felt something cold against my back. As I reached behind me, the first thing I felt was a GREAT relief that the escaped snake in bed with me was MUCH too thick to be the cobra! It was merely the anaconda that escaped when Bill left the cage door slightly ajar.
I much prefer to sleep with my cats! But I guess many of us do things in our teens and twenties that we prefer not to repeat as we (hopefully) mature later! Hopefully those who keep snakes in their bedroom will not repeat some of the things we did when we were young. Amazing we ever made it to our ripe old ages today, lol! But no matter what stupid things we did when we were young, neither of us ever caught any disease (that I know about) from any of our animals.