Here are some examples of various ways to use light to your advantage:
The classic ikea wall light can set up a perfect nights sleep for a baby
Using a bit of imagination (& enviable high ceilings) you can choose coloured glass to add an element of fun to a large playspace.
It's often a dream for a kid to have their own attic bedroom, this example uses the pitch to include more light & also watch the stars above at night, ahhhh!
Jonathan Adler does fantastic table lamps easy to fit in to any child's décor
LED lights have been proven a highly powerful light source yet gentle on the eyes. The ability to change the direction of light is handy when doing various study projects, and it is also becoming more sustainable & cost efficent.