In a bowl, combine the oats with milk, maple syrup, pumpkin puree, vanilla extract, and pumpkin spice. Mix together really well.
Place in an air tight container or covered bowl and store in the fridge to soak and thicken overnight or at least 3 to 4 hours if you can't wait that long.
The next morning, enjoy with a bit more pumpkin spice on top and optional chopped pecans and whipped cream.