Do your kids have nightmares? My 3 year old has for a couple years now. Usually 1-3x times a week. The nights she does its relentless...she will wake up wailing, I go in and calm her down, she goes back to sleep. As soon as I'm comfy back in bed she's wailing again. I've had to go in 4x in the last hour! She has a nightlight too, hasn't made a difference.