There's plenty of stories on here about people having night seizures. I have about 2 seizures per day, simple partial and always conscience.
Half of my seizures occur at night almost exactly one hour after falling asleep. I usually wake up with a strong seizure feeling coming on and then about 3 secs later the fun begins with intense right side shaking, lasts for about 2 mins. Starts in my right hand goes down my whole right side and finishes with my right hand.
Seems that night seizures are pretty common on this site but what happens to the body around the one hour mark from falling asleep? That seems to be a trigger for me.
Read all about it at: http://www.thegrilledpepper.com/2010/03/seizure-activity/