First of all. Get the dog out of the bed. The dog has decided that it is the leader of its pack and has no fear of biting them. The owners need the help of a dog trainer to retrain them and the dog.
Yep. Our dogs do not even come in our room. They sleep outside the door. We have incorporated retired military attack dogs, catahoulas (a very challenging breed), cast offs, orphans and prissy spoiled dogs into our pack with never a biting problem. We have taken dogs with behavioral problems and cured them through HUMAN DOMINANCE. They all know they are at the bottom of the pack. They adore the two crawling grandkids and show NO aggression towards anyone in our pack.