What's Up With Kids Rolling Around in Their Beds All Night?

My husband and I like to joke that we gave birth to a grandfather clock. From the day my firstborn was old enough to sleep without a swaddle, he was rolling around the crib in a clockwise fashion. Seven years later, he's still doing it. We've tried twin beds, full beds, and even our own queen bed. It doesn't matter the size, he'll find a way to spin around in his sleep. We've tried tucking him in tightly with his covers, but that doesn't work. And don't even try to lay down with him when he's sick — it's become a dangerous proposition, one that'll likely leave you looking like you were on the losing end of a street fight.

We thought he was an abnormality, until our second son was born, and he started doing the same thing. And when I started asking friends if they'd ever heard of such a thing, I began hearing more stories — including kids that actually do flips in their beds in the middle of the night. There must be an age when they start sleeping more soundly — and in the right direction! — because you don't see many adults doing the clockwise spin, but when?

If you had a restless sleeper, was there a certain age when it stopped? And did you do anything to make it stop?