Did you remember to change the batteries in your smoke alarms when you changed your clocks? It’s not too late! http://www.nfpa.org/smokealarms
Also, don’t forget about your Carbon Monoxide (CO) detectors. A CO detector… why have one of those? The risk of CO poisoning increases significantly in the winter months when the fuel-fired heating equipment is fired up. Often called the silent killer, carbon monoxide is an invisible, odorless, colorless gas created when fuels (such as gasoline, wood, coal, natural gas, propane, oil, and methane) burn incompletely. In the home, heating and cooking equipment that burn fuel are potential sources of carbon monoxide. Vehicles or generators running in an attached garage can also produce dangerous levels of carbon monoxide. In 2010, U.S. fire departments responded to an estimated 80,100 non-fire CO incidents in which carbon monoxide was found, or an average of nine such calls per hour. Source: NFPA
You can sleep safely at night knowing your smoke alarms and carbon monoxide detectors are operational and have fresh batteries.