I’m looking for a children’s book I checked out of my elementary school library in the mid/late 1980’s, so the book is from that period or earlier. I can’t recall much but it concerned a family of animals (pigs, sheep, lambs?) that lived in an urban setting (I think), an apartment with bunk beds (maybe) - there were lots of “kids". The parents go out for the night and the baby sitter turns out to be a wolf! Chaos ensues... That’s about all I’ve got. The book was illustrated.