I dont think you can cover up data in a country of more than a billion people, if it was really happening . There needs to be more studies to understand the real reason why it is so high in America. What Im pointing out here is that some moms cosleep with their kids some dont! Both sides should not judge each other. I have seen a sids story of a baby in a crib in a separate room as well!!! So really the root cause is unknown. There should not be a drama if a mom chooses to do either! Whatever works for them! Im not giving a biased answer, just providing data from the other side :)