bad dream?

At 2 am E started panicked loud crying. When I rushed in it looked like she was still asleep (on her tummy). I remembered reading somewhere that you don't want to startle a child in the middle of a "night terror" -- if that's what this was -- so I put my hand on her back and spoke to her softly instead of snatching her up into my arms like I wanted to do. After a long second or two she stopped crying and started to roll over. We rocked for a few minutes and the sobs stopped and started, died out, and she was fine. Weird. I need to look this up.