Is it safer to sleep with your bedroom door closed?

Should you sleep with your bedroom door open or closed? The question seems innocent enough, but the answer is actually quite serious. Keeping your bedroom door closed at night significantly increases your chances of surviving a household fire. However, only 29% of Americans regularly sleep with their bedroom door closed. Worse, over half of adults sleep with their door open, under the mistaken belief that it keeps them safer in case of a fire.