T.B.
I'd use a green cleaner, myself. Something safe- definitely NOT Lysol, like Mrs. Meyers, or Shaklee's Basic H2. Your child will sleep there, have their nose right ON it, and be inhaling that Lysol for months to come. There's a reason there are so many warnings on the label...
I wouldn't worry about germs so much, as long as you get all the surface stuff cleaned off, and get it vacuumed out well. It will be clean. ;)
T.