Should I sleep-train my child?

New research suggests letting infants cry for short periods until they settle can help both parent and child sleep better. But is it emotionally harmful?I am confident that one day our six-year-old will sleep through the night. It may not be this week; it may take until secondary school. If we had sleep trained her, it might have been different, but I just couldn’t bear the tears. This makes me eligible to join the latest guilt trip after research in pediatrics showed that delaying bedtime