The bottom locking mechanism can fail to lock, allowing infants to roll into the side of the bassinet. Two infants were reported to have breathing difficulties when this happened.
This is a summary of a recall issued by the Consumer Product Safety Commission (CPSC). The link below will take you to the original recall press release containing complete information, including instructions about what to do if you are affected by this recall.
View Full Details Of Original CPSC Recall Notice Here, Including Pictures If Any.