Will it be uncomfortable to sleep on the side with fresh piercing ?

it is quite uncomfortable to sleep on it if its freshly done, plus try not to. you might irritate it or hurt it while your sleeping. I got my industrial pierced and I slept on the same side. I woke up the next morning with blood all over my pillow and ear. also, you can bring your own jewelry, just buy it and dont take it out of the package, bring it to the piercer like that. if its something that youve already used I dont think they will put it in. just for safety and infection purposes. good luck tho. I have my conch done (left side) and it looks good. youll love ittt.