This advice issued to parents by a firefighter could save a life.
The emergency responder revealed how shutting a child's bedroom door can make all the difference if a fire were to break out, the Mirror reports.
In a message posted to the Cold Spring Harbor Fire Department Facebook page, the unnamed firefighter, who is a parent themselves, wrote: "As a parent it's hard to convince little kids to sleep with the door closed, they always want it open just a little.
"I do a lot of fire prevention at schools, so one thing I try and stress to kids is, how important it is to sleep with the doors closed."
The firefighter went on to explain how there was recently a fire in a neighbouring area and shared photos from the blaze - one showing a charred door, the other showing the back of the door which is still white.
"The homeowners and family dog are all doing well," the responder continued.
"The photos below are a great example of the importance of keeping bedroom doors closed while sleeping.
"The door pictured in both photos is a hollow core door to a bedroom. While the front of the door is severely damaged the closed door protected the bedroom and its contents.
"If this were an occupied bedroom the closed door could have saved a life."
The post has since gone viral with over 5,000 shares more than 1,000 likes and hundreds of comments.