I'm Flying...I'm Fallllllling...BAM!

.
You know sometimes, your about to drift off to sleep and sudden you JERK. Your like woaw, what was that about?

Well....I found an article that explains why that happens:


Sleep starts
One moment you’re drifting off to la-la land, and the next instant—whoa!—you’re dropping off a cliff. Sleep experts believe the brain sometimes gets the wrong message from the body during the transition into sleep, and associates the lack of muscle tension with being in midair. “The usual explanation for sleep starts is that the loss of muscle tone at sleep onset is sometimes accompanied by the feeling of falling,” says Dr. Rosalind Cartwright, chairman of Behavioral Sciences at Rush-Presbyterian-St.Luke’s Medical Center in Chicago. “So it is reacted to by a sudden jerking of arms and legs to ‘save’ oneself.”

So apparently, I am trying to save myself while falling in mid-air. Guess I have to pay more attention next time. All I recall is that I suddenly jerk/kick, then realise, hey, I'm ok, dammit now I gotta get sleepy again.

Does it happen to you?