With the weather getting colder, the heaters are getting cranked up and the wood stoves are getting lit. We all know our basic fire safety tips, like check the smoke alarms, call 911, have an escape route ... but do you know there is a safety tip that can save your life and takes only one second to do?

A new study finds that ONLY 29 percent of people sleep with their door closed -- but did you know that sleeping with the door closed could save your life? Check out this video: