My husband has had seizures for the 25 years I've known him.He was discharged from the Navy due to what they thought was sleepwalking.In 1972 he was in a motorcycle accident with tramatic head injury.When I married him in 1978 I presumed I was the first to notice Epilepsy.He has seizures within 2 or 3 hours after falling asleep.There has been alot I've noticed since dealing with this.It wasn't untill I bought a Computer the words for it.
One is keep a journal exspecialy on bad days.Often a doctor will see this and be able to figure out what is going on with your husbands Epilepsy.
Another is what the Epilepsy community call Triggers.In my husbands case
lack of sleep,stress,alcahol,and not eating right.
Also there is what they call Auras.My husband doesn't have these.They are a rotton taste and smell that warns of a seizure.
Hope this helps.If I can be of any help.I post in the caregiver forum here also.