My 3 1/2 year old will not sleep through the night. She is up screaming at least once or twice a week. She is not having night terrors or anything like that & she doesn't come out of her room. She will just scream or call out for us until me or my husband go into her room. I walk into her room & tell her to go back to sleep it's still night-night time. She does go back to sleep but how can I get her to stop screaming all together?