Preheat oven to 350 degrees f
Grease a 13 X 9-inch baking dish
Wash, peel, pit and slice peaches into 8 slices each ( total of 16 slices) Place in small bowl or clean surface, and sprinkle with cinnamon
Open tubes of crescent roll dough, and divide into triangles along perforations
Place 1 peach slice on the wide end of each crescent roll triangle. Roll up dough over the peach slice, leaving ends open. Repeat until all peaches and dough are used up
Place dumplings into greased baking dish
Place butter and brown sugar in small saucepan, and melt over low to medium heat on stove. Stir frequently until well combined and smooth. Remove from heat, and stir in vanilla extract
pour caramel sauce over dumplings. The sauce should cover the bottom of the baking dish
Pour Sprite around edges of the baking dish
Bake for 30 minutes or until tops are firm and golden brown, dumplings are puffy and sauce is bubbling
Allow to cool slightly before serving