~ Japanese Proverb
When I was a kid and I'd be drifting off to sleep, I'd just be starting to dream that I was on my back on one of those cart things that slides under a car so a mechanic can look at it? Then, just as I started moving, I'd roll off the cart. This caused me to jolt myself awake.
It still happens sometimes, but not too often.
I've never even used one of those mechanic cart things, though. I wonder why that was the thing I always rolled off of.