Preheat the oven to 375 degrees F (190 degrees C). Unwrap crescent dough and separate into 12 triangles onto a clean work surface. Spread 1 to 2 tablespoons cream cheese into each jalapeno half and press a sausage half into the mixture. Place stuffed jalapenos on top of the crescent triangles and sprinkle with 1 to 2 tablespoons Cheddar cheese. Wrap stuffed jalapeno with crescent dough. Bake in the preheated oven until dough has puffed up and is lightly browned, about 15 minutes.