Every adventure stops by a farmhouse at some point, so why shouldn't we have a map for it? What would happen in a farmhouse, you ask? All sorts of nefarious things - or, it could be just the pastoral interlude that your characters need.
Personally, I don't believe in such silly things as "giving players hope" and "letting players take long rests", but your games might be different than mine.
This house is loosely based on an actual converted farmhouse I've been in a few times. I don't remember the layout exactly, but I remember enough to get the basic layout, and from there it's simple guesswork. They didn't have a wine cellar, but what self-respecting adventurer's rest doesn't have wine?