What's all that barking about?

We went to bed a bit early last night. I think we are fighting off a cold or some sort of sickness. Sleep was pretty restful until about 2 AM, when we were awakened by our next door neighbor's dog. Yes, she was barking. Non-stop so I couldn't tell if others were too or not. I got up after listening to it for about 5 minutes. Sleep certainly eluded me. I peeked out the window and saw nothing. She seemed to be barking at nowhere in particular. A pause allowed me to hear some dogs in the distance. I don't know if she was barking at them or vice versa. My husband (who sleeps through ANYTHING) woke up and listened too. He finally got up and checked around outside. I think after 30 minutes of this madness, the dog finally got quiet and we were able to go back to sleep. 6 AM, she was at it again and then again at 7 AM.

It's times like this, I don't miss having a dog. Yes, they are good for protection, but sometimes, they bark to listen to themselves. You can train your own dog to be silent, but what do you do about your neighbor's?