Fill a large bowl with warm water. Dip one wrapper into the water for 5-10 seconds to soften.
Lay wrapper flat on a clean surface, (I used a cutting board). Start by placing 1 lettuce leaf (or handful of lettuce), on each rice paper. Next, in a row across the center, place 2 avocado slices, 2 tomato wedges, and 1 piece of bacon in each rice paper wrapper, leaving about 2 inches uncovered on each side.
Fold uncovered sides inward, then tightly roll the wrapper (like you would wrap a burrito). Repeat with remaining ingredients in each rice paper wrapper, until all of the rolls are made.
To make the optional dipping sauce, mix the Sriracha and yogurt together in a small bowl, and serve with spring rolls.