Is the room truly just a bedroom – a place where your son or grandson will go to bed and get dressed, and that's it? Or, as is often the case, will your child's bedroom multi-task, serving as a place to sleep, study and play? If the room will be a multi-functional room, make sure that you have areas dedicated and tailored to each activity.
Consider setting up a desk area for studying, and make sure there is plenty of storage for both toys and clothes so that the room has the best chance of staying neat and comfortable to sleep in. If the room is going to have a theme, try to incorporate elements of the theme into each area of the room so that it feels unified.