Hi Roudysmum,
My son is the same age as yours.
It seems as though he went through a stage of them last year for about 6weeks, it is so sad seeing them so distressed
I just sat with him gave him lots of cuddles, and i did buy a nightligt which is plugged into a poewr point and is a sensor one so it turns off when it is light.

Just recently he has started having them again although they seem to be worse, it is taking me alot longer to calm him down, he is getting more distressed.

I will be intrested to see what other parents have to say in this thread as i am in the same situation.

I hope that your sons night terrors stop soon and to you i know how hard it can be to see your child so distressed.