There isn't a known cause for night terrors in children. It is a disorder related to sleep walking, talking in your sleep, eating in your sleep, and a few other less known disorders. Sometimes it's passed on in families, sometimes there is nothing. I have adult night terrors, which are usually caused by a traumatic event, but kids who lead perfect lives can get them for no reason at all.
I can get into more detail if you'd like to PM me, but the thing that seperates NT's from nightmares is that your baby will physically wake up during the NT, but mentally still be stuck in the terror. So his eyes might open, but he is seeing whatever it is that he's dreaming about. (You didn't say boy or girl, so forgive me if I'm wrong lol)
at 12:43 PM on Dec. 26, 2008