The article is mostly focused on what a person can do for himself, but I think *parents* need to pay more attention to their children's sleep! Helping your children learn good habits from infancy is a gift you can give them.
When they are little, this is just a matter of helping them get to bed on time and keeping them on a good regular schedule. When they get to be teenagers, don't just ignore their sleep.
All those things that the article mentions, like getting sunlight during the day, are all things that parents can encourage their older children and teens to do to help them get appropriate sleep. (Sleep deprivation is probably more common with teens than too much sleep, but both are problems that parents should watch out for and both can cause or be symptoms of other problems.)