it could have. there are many seizure triggers, and the top three are lack of sleep, stress, and alcohol/drugs. of those the last two are my triggers, stress by far.
when we are scared of something (seizures, test results etc.) the stress rises unbelievably, which for some that's all it takes. from what i've read of your postings his epilepsy is nocturnal generalized? this means at night and always tonic clonic. or does he have partial seizures prior, known as a warning?
you won't be able to 'wake him up,' as we're unconscious, not simply asleep. nothing you tried would his brain even acknowledge. what's best for those around us is to make sure we're safe until we're fully conscious and can make our own decisions. though his are nocturnal, what's important in regards to what to do is what type of seizure rather than when.
DO-
gently turn him on his side to help clear the drool so he doesn't choke
stay close to be sure he doesn't fall off the bed
make sure there's nothing around his neck that could choke him (blankets can get pretty mangled when we're seizing)
watch the clock (when the sz starts check the time, as if it's nearing five minutes an ambulance should be called). most tonic clonics are between two and four minutes.
DON'T-
hold onto him or restrain in any way
only 'move' him if his head is going to smash into bed railing etc.
stick anything in his mouth
what makes this easier for you guys in the long run is writing down everything. the day, what time the seizure was, was he fully asleep or falling asleep, was there anything different/out of routine about his day, did he not sleep well the night before, ANYthing that's out of the norm for you guys. it helps us learn triggers and possible patterns, which is very beneficial.
hugs and best of luck, keep us posted.
