Blend coconut milk/full cream milk and berries together in a blender until well combined.
In an air-tight container, add chia seeds, coconut milk/blueberry mixture, vanilla bean extract, and coconut sugar together and leave overnight for at least 12 hours -2 days in the refrigerator.
For convenience, divide the chia mixture into 4 glass/silicone cups with a sealable lid.
Top with chopped nuts (optional), yogurt and fresh berries before using for lunch box or serving.