I wouldn't worry about what they type. It is probably "need to know" information. When I went in a couple of times for the two hour sleep deprived EEG's, I never realized I went to sleep until the friend who took me told me I did.
If they schedule for the three to four day in-patient EEG where you are videoed and monitored 24-7, don't worry about that either. In my opinion it is absolutely the best test you can have for epilepsy. It doesn't hurt.
Take care!
Carla