I had sleep deprived EEG's done on both of my older kids. It used to be a standard test before a child was put on a stimulant for ADHD, but it no longer is. Being sleep deprived gives the docs a better chance to see seizures.
We played games, watched movies etc... with each child. They were not done at the same time. With my oldest I wanted to rule out any problems. We did not expect to see anything, but he had reacted strangely to some medications and had fallen from a shelf onto his head on a hard gymnasium floor (he was hanging off of a coat rack by his legs in the 2 minutes the teacher and I had our backs turned and he fell right on his head). Nothing was seen in my oldest's EEG.
With my daughter the teacher and my mother were both telling me that daughter had inattentive ADHD. It just didn't feel right to my intuition. I thought something else was going on. So I insisted on seeing the pediatrician neuro BEFORE we used any ADHD medications. We happened to get into the psychiatrist a month before the pediatrician neuro, and they gave us TONS of strattera samples, thinking I would cave if the medications were there. But I didn't. We had the EEG and then they called us to come in to talk.
Never a good sign. Turns out my daughter does NOT have inattentive type ADHD. She has Absence Epilepsy with a few features of more serious seizures. It took a full YEAR to get her sensitive system titrated up to the right level of anti-seizure medications. But now, as long as she doesn't forget her medications, you would never know there is a problem!
This can be a VERY valuable test. Be sure to follow the no caffeine rule and any other dietary rules. We actually went out to eat before Dad and the boys got up that day, just so I could keep her awake in the morning.
I hope that if there are seizure issues they are caught by this EEG. If you think there are problems that are not caught by this EEG, you can push for a longer EEG and that may catch more. At one point we did an 8 hour EEG, but after 4 hours they unhooked her and sent us on our way - they had LOTS of activity and so didn't need the extra time.
GEtting the glue out is the hardest part. I found using a hot oil treatment helped the glue slip right out.