Manufacturers of infant sleep positioners claim that the use of these devices keep sleeping babies on their backs, reducing the risk of sudden death syndrome (SIDS). However, both the FDA and the Consumer Product Safety Commission say they are unaware of scientific studies supporting these claims, and have issued a warning that they can cause suffocation.
PositiveTip: Never put pillows, infant sleep positioners, comforters, or quilts under a baby or in a crib. Simply lay them on their backs.