When my daughter was six, she used to wake up screaming a half an hour after going to bed.  These horrific night terrors lasted for at least 10 excruciating minutes during  which time she was wild-eyed and flailing like the world was coming to an end.  There was no waking her up during these episodes, even by her own mother who she wouldn’t even recognize.  The whole thing was deeply traumatic to witness.  It turned out that these night terrors only happened when she had looked at a screen that day.  The content didn’t matter, it was the lights coming from the physical device itself. When we took away any screen time (nearby iPhone included) the terrors stopped immediately.  We had already gotten rid of …