Then again later on after I fell asleep again I heard it again, and wokeup but knew it was a dream. This time I was aware I was dreaming and also knew who was at the door in the dream.. but the knocking was loud enough to wake me up.
Im a pretty light sleeper and usually wakeup when there is another presence nearby.
THEN LATER my co2 alarm started going off in my house.. I had a car battery charging next to it and it must have made a small ammount of Co2. It was very annoying cuz I hate wakeing up in the night and having to fall back asleep.
Three times.. Im pretty grumpy this morning about wakeing up that many times.. Two for non-existance reasons and one cuz of the damned c02 alarm