The very first time I ever worked with kids, there was a girl who had epilepsy, and she routinely had seizures in her sleep. They weren't violent, but she'd be shaking and convulsing.....
First time I saw it was like

but the staff who had worked with her for a while was like
Its odd because you want to do something but there's nothing you can do. With this particular girl she just had them then fell back asleep, she didn't even really wake up, would be Sound asleep then start seizing, then stop and be sleep again.