The beeping is not just you. There is indeed, a reason you are hearing these ,, sounds,,, but I don't think you want to know. I'm sure you will find it very hard to believe. Most humans are not ready for this yet. But its happening. NO - You are not crazy,, no its not your electronic toys and devices. PC, IPOD, Cell phone, the remote for the TV or any other house hold device. When you mentioned supernatural beings you are pretty close,, but not totally on correct. Between now and 12/21/2012 many people will experience strang high freq. sounds, such as beeps and bells and tones. They may wake you up from deep sleep or pull you out of a good day dream some after noon. Or during that time right after you go to bed,, but you are not sleeping yet.. you are almost asleep but not quite. Pay attention to the times you are resting ,,, when your brain is in alpha state! Do some research on this. You will be very surprised at what you find. Our concept of reality is going to change very soon, the noise you hear is only a test of your consciousness.