I've always heard that dogs barking at night can have a spiritual meaning. Some people believe dogs are very sensitive to energy and may react to things humans can't perceive, like spiritual presences or shifts in the atmosphere. In many traditions, nighttime barking is seen as a sign that a dog is sensing unseen energy or acting as a protector of the home. Of course, there are usually ordinary reasons too, like sounds, animals outside, or unfamiliar scents, but it's an interesting belief that's been around for a long time. Here's the spiritual meaning: https://chi-nese.com/spiritual-meaning-behind-dogs-barking-at-night/