I'm always half asleep when it happens, but I think what I do when I feel one coming on is to flex my foot upwards... opposite of pointing your toes out. If I do that in time, it will abate, if not... I thrash about on the bed like Fish out of water for a couple minutes.

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Put me on wheels and I'll turn tricks.

Clever? Nah, I ran out of that years ago. But if you find this, let me know, k?
"The road goes ever on..." ~ Tolkien

In memory of my friend skip...
Go then, there are other worlds than these