Easy Cheesy BBQ Chicken

6 boneless, skinless chicken breasts (about 1 1/2 lbs.) 1 bottle (26 oz.) barbeque sauce 6 slices bacon 6 slices Swiss cheese Place chicken in crockpot. Cover with barbeque sauce. Cover; cook on low 8-9 hours. If sauce becomes too thick while cooking, add a little water. Before serving, cut bacon slices in half, cook on stovetop or in microwave, keeping bacon flat. Place 2 pieces of cooked bacon on each chicken breast in crockpot. Top with cheese. Cover; cook on high until cheese melts.