Preheat oven to 350°F (175°C). Line baking sheets with parchment paper.
Whisk together flour, baking soda, and salt in a medium bowl.
Cream butter and sugar until light and fluffy (3-4 minutes).
Beat in eggs one at a time, then add vanilla.
Gradually mix in dry ingredients until just combined.
Fold in sprinkles gently.
Scoop 2-tablespoon portions onto prepared sheets, 2 inches apart.
Bake 10-12 minutes until edges are lightly golden.
Cool on sheets 5 minutes, then transfer to wire rack.