There are a few reasons why a muzzle might be a good solution for stopping a dog from barking at night. First, a muzzle can help to keep the dog quiet, preventing them from making noise that may disturb others. Second, a muzzle can protect the dog’s mouth and teeth from being injured by other objects or people. Finally, a muzzle can help to keep the dog from being able to breathe properly, should they become overexcited and start to bark uncontrollably.