are you using a standard surface bar, or a curved one, i'm pretty sure its standard, but i can't really tell.. be really careful about sleeping, and actually, if i were you, i would switch to discs instead of beads on the barbell, they don't get caught as easily as everything else does.
i ahd my surface navel done, and i think it would have healed much better if i had discs. the balls look like theyre too big for the size of the barbell, i probably would have gone with a longer one, because of swelling and everything else, i know mine was 1" and it was the best size imo.
hope it heals well, surface piercings are a bitch, baby the SHIT out of it.