Lighting forms an important part of kid's room. Proper lightening enhances the beauty of the room along with it's utility.

A ceiling lamp that provides good lighting across the room is a must.
You can also go a bit imaginative and make a cozy corner with comfortable chair and a canopy where-in you can share stories and fairy tails. Make arrangements for a long neck lamp on the top to diffuse and direct light.
You can go in for two or three wall lamps with bulbs of varying strength to give a dramatic touch to the room.
To add on to the sleeping mood arrange Christmas lights on the walls that will give the feel of stars.
Most Important Choose child safe lamps and clip any loose wires to the walls if the kids are small.