i always wrap the eggs within a few hours of shipping when possible. I have never tested the theory of how long can i wrap before i send and they still hatch.
I have been reading some adds on ebay stating that bubble wrapping eggs will kill them because they cannot get air. This is a false statement. I have hatched and people have hatched many eggs bubble wrapped.
I don't think I have gotten mailed eggs except from one person that weren't bubble wrapped. And have had hatches good and bad, so I think it's ok, just wondered if there was an "accepted" amount of time. I don't want to hurt anyone's chances either