Sorry to get off the topic for a minute. I have had more trouble with bear than most. Next to the electric fence, I would say a rakio left on a talk sow is the best deterant. When I lived above the American River, the bear would visit me on a regular basis. I have found that they run from a light being turned on and noise. I fixed at set of lights to the switch in the bedroom so I could light up fifteen acers for a few seconds. Any longer would throw the circut breaker. But if I had only one thing to use other than an electric fence, it would be a radio. Try that and see if it doesn't let you sleep a little better.