Cook pasta according to directions on the package. Rinse with cool water and drain, then add to a large bowl. Set aside and let cool for 10-20 minutes.
In the meantime, make the dressing. In a mixing bowl add mayo, sour cream, apple cider vinegar, salt and pepper. Whisk until combined.
Add crumbled bacon, cherry tomatoes, and half of the lettuce to the cooked pasta. Pour dressing over the salad and toss gently to combine. Stir in remaining lettuce.