My Son use to have simular night terrors,or maybe you could call it hallucinating. He would typically get these,when ever he had a temperature. He would even get these during the day,if he fell asleep.He would open his eyes and be looking right at us, and the terrors would continue.We couldn't understand,how he could be awake,and still be screaming and seeing frightening things. It scared us to death.He was equally as frightened by these,so we always stayed calm.We discovered,that when ever he had even a slight fever,he would have these.The Dr. told us, that some childrens bodies just can't tolerate fever,and this was the bodies way of fighting the fever.As soon as the fever went down, his terrors seized.We use to give him luke warm baths at night ,just to cool him down,so he wouldn't have the terrors. Eventually,the Dr. gave us a prescription for medication,to keep fevers down when ever he became sick.He grew out of this,after a short time.