So I had a small brain wave. Although dye is all well and good in water it doesn’t really relate but I was struggling to think of something that would, but would also mix with water. And then I thought (as I sipped my morning coffee) why not coffee granules? I took this picture a while ago when I was making coffee with some water left in the bottom of the cup, t made this really pretty pattern where the coffee was beginning to dissolve. This means I could link the coffee to sleep – obviously caffeine is a stimulant to keep you awake, and I like the way the coffee would juxtapose the fact that its representing a sleeping pattern.