Mom’s voice may wake a sleeping child better than a traditional smoke alarm: Study 

It’s tough to get most children to sleep and sometimes it's even tougher to wake them up. But what if there is an emergency?

Fifty percent of fires occur at night, and a major risk factor for fatalities is simple: being asleep. Children between the ages of 5-12 are at greatest risk since they often don’t wake up to a smoke alarm siren. This is because children sleep longer than adults, spend more time in deeper stages of sleep, and need greater auditory stimulus in order to awaken.