Ive had this really strange thing happen to me 4 different times now. Its been all in the last 3 years or so. I'll be sound asleep and SUDDENLY be shocked awake. The first time it happened I felt like everything had gone blank and someone 'plugged me back in'. That is the best way I know how to describe it. Like someone flipped my on/off switch off and then back on.

Its very disturbing when it happens and I wonder what in the world just happened.

Has anyone else experienced anything like this?