Yes, it can be healthy. Sleeping naked allows the body to better regulate its temperature during sleep. It can also promote better blood circulation as there are no constrictions from clothes.
Sure. There are countless sleep stories for boys. Adventure stories are often popular. Take 'Peter Pan' for instance. It's about a boy who never grows up and his adventures in Neverland. The exciting plot can gradually slow down as the story progresses, making the boy feel relaxed and ready to sleep.
This is a very concerning and inappropriate situation. Such stories, if true, are likely to be part of abuse or inappropriate behavior. In a normal, healthy, and ethical environment, this should not occur. We should always strive to protect the well - being and privacy of children and ensure they are in safe and appropriate living conditions.