make light spectrum of colors to accompany sleep

Step 1: Material

1.mini cd/cd/brokencd (use cd bright and good at reflecting light)

2. LED lights are shining white (light that has focus)

Step 2: Way

1.use on a white wall or room ceiling white

2.put the cd and light sources to produce the desired reflection spectrum/use a light flip-flop seemed nice too

3.cd combinations and light sources to produce a variety of spectrum

4.enjoy your sleep