Preheat the oven to 350 degrees F (175 degrees C).

Put jalapenos on a baking sheet.

Cook in the preheated oven until jalapenos have softened, about 5 minutes. Remove from the oven and set aside to cool.

Unwrap crescent dough and separate into triangles.

Combine cream cheese, Cheddar cheese, and bacon bits in a bowl; mix well. Stuff each jalapeno with the cheese mixture and press a cocktail sausage on top. Wrap each stuffed jalapeno with a crescent triangle and place on a baking sheet.

Bake in the preheated oven at 350 degrees F (175 degrees C) until dough is puffed and golden brown and cheese has melted, 12 to 14 minutes.