There was a program on the T.V. a number of years ago that suggested it was the ‘Downstairs livestock room’.
This would be warm and private.
Probably belonged to the inn keeper as part of his private lodgings.
We may never know for certain.
We may never know for certain.
I have heard that some cultures did live above the place where they kept their live stock.
You are right we may never know, and just to be honest i can name the things i do know about all of this pretty quick but i don,t think there is enough time to name what i don,t know.