Has anybody else had this happen? Just when I transition into sleep from the waking state, I hear a VERY loud doorbell ring. There is no doorbell in my house. It's not heard with my ears, but it's LOUD; the end result in the brain is the same as if it was heard with my ears. It snaps me awake each time. It's usually a doorbell, although a couple times I heard somebody yell my name (I think?). It hasn't happened for a couple years but for awhile it was every night.