Fires start quickly, and many people don't wake up quickly when they're in the deep sleep phase of sleep, so think about that. A smoke alarm might make you think and act more slowly if you had a lot of sleep, drank, or were very tired. This helps you get your family out faster. A lot of people don't make sure to check their smoke alarms every single month. It's possible that the batteries will die between checks. You can add extra security to your home by installing sprinklers.