According to a study by researchers at the University of Alabama- 799 children were followed from Birth to 36 months of age. It was observed that children who consistently wake up through the night have higher risk of unintentional injury, and that the increased risk was independent of factors such as maternal mood, parenting style and socioeconomic factors.
J Pediatr Psychol. 2008 Apr;33(3):323-32.Epub 2007 Nov.14