During the day they typically sleep curled up in a ball.

At what point should you curl up in a ball and play dead?

All he wanted to do was to curl up in a ball and lie there on the floor for a few weeks.

He kept his face to the wall, curled up in a ball, silent.

He curled up in a ball again and came out of it feet toward the ship.

I went back to my hotel and curled up in a ball on the bed.

He was curled up in a ball, holding his stomach.

So I fell to the ground and curled up in a ball.

But her stomach was curling up in a little ball.

Of course she would have to curl up in a little ball and die if he did.