We know that many, many parents rely on TV and video as part of their child's sleep routine. Watching television before bed makes it more difficult for children to fall asleep. It found out that children below three years old that have seen television, there's a big risk that they sleep irregularly. I advise parents that there should be limit amount of TV during the day to less than two hours of screen time, including TV, computer, video games. And don't use TV as a go-to-sleep aid for children.