As Cint mentioned, sleep apnea can be an issue with epilepsy. One of Jon's neurologists was part of a study at U of Michigan on the correlation between sleep issues and epilepsy. She was quite sure that Jon's nocturnal seizures were related to poor sleep, snoring, and difficulty breathing at night. Consequently, Jon had a tonsilectomy, which resolved the worst of the snoring and straining to breathe at night. But, unfortunately, it didn't resolve other sleep issues (frequent awakening) nor did it resolve his nocturnal seizures.
What did resolve the sleep issues (and ultimately brought seizure freedom) was a dose of magnesium and calcium at bedtime, and also his full daily dose of Zonegran in the evening.
Although he doesn't have seizures, my husband was having a dreadful time with snoring and what appeared to be sleep apnea (he'd be snoring really loud, and then just stop breathing...and I'd be lying there waiting for him to start breathing...and waiting...and...finally I'd poke him or something, and he'd gasp and then start breathing again). I never could get him to go get a sleep study. But, about 8 months ago, we started a new eating plan that had a lower glycemic load, featured only whole grains, and reduced consumption of gluten (wheat products) by about 90%. We both lost some weight, but even before losing much weight, the immediate benefit that we noticed with my husband was that he pretty much has stopped snoring. The only explanation I have for that is that gluten sensitivity is sometimes associated with inflammation (we both also have far less joint pain), and perhaps some sort of inflammation was causing the snoring.
Gluten is known to be a trigger for seizures -- you might try reducing or eliminating gluten from your diet and see if it has any effect on both your seizures and your snoring.