While it's common sense that bunk beds should be safe before use, approximately 36,000 bunk-related injuries happen to children every year in the United States, according to Nationwide Children's Hospital. Most such injuries are from falls while sleeping or playing, which means they probably could have been prevented if safety precautions had been followed. Optimal safety involves not only ensuring that the bed is structurally sound and free from hazards, but that children are instructed on proper bunk use. In other words, jumping on the top bunk is not a good idea, nor should several kids hang out on the top bunk at the same time.