Is My Son Having Night Terrors??

Patient: My son is 9 months old and waking up hysterically crying every night around 11:15-11:45 pm. He doesn’t want to be held, a bottle, the pacifier, nothing. He usually doesn’t even open his eyes. We lay him down for bed between 8:00 and 8:30 pm. He typically only takes two or three 30 minute naps each day (between 7:00 am & 8:00 pm). My brother used to have night terrors, but this happened when he was an older child. Could my son be having night terrors??

Symptoms: Very short daytime naps, evening exhaustion & waking up hysterical.