no, i don't eat in the middle of the night. but i did eat a lot more when i first started nursing and occasionally that was in the middle of the night...but i think that tapered off by 2-3 weeks.
My son also just turned 6 months and just this past week I am STARVING. He got up to eat at 2 last night and I couldn't fall back to sleep because I was hungry. I didn't eat, but I could have!