I saw a segment on the news about kids not waking up to smoke alarms and I got to thinking. I'm a pretty hard sleeper. I wonder if I would wake up to one. So I tested to see. Believe it or not I slept right through the 90 dBs screeching. The segment talked about a recordable vocal smoke alarm and that a childs name is the best way to wake them up. I assumed that the same would be true for an adult. So I got one and tried. This thing woke me up in secons and its great to remind me about the fire escape. It's not just kids that don't wake up to smoke alarms. Have somone test one in the middle of the night you'll see. Every child and adult should have a SignalONE smoke alarm.