Update to all nighters..

So, I wrote the other day about Bella getting in and out of the crib all night. Well, she has continued to do this all week. We have tried everything! Her poor little hinnie has been spanked to pieces (yes, we do spank in our family) and she has sat in numerous time outs and had things taken away and had rewards systems too. Yesterday, we resorted to locking her in her room. It was quite possibly the most hillerious thing we have ever done! She knocked on the door for 40 min calling "Elizabeth, open the door" "Elizabeth, let me out", "mommy daddy, help". SHe was not crying, just demanding and appauled that we would ever do such a thing, so it was very funny. We could hear her opening the closet door just to reassure herself that yes, she still did have the ability to open the doors. Anyway, It worked last night! We went into her room after a while and put her back in bed and explained to her one more time you may not get out of the bed. She stayed in bed until 7 this morning! We will see if we can get it for 2 nights in a row. But today I got so tickled b/c she called for me again at the door when I put her down for her nap for about 20 min. She was quiet for about 15 min and I went to check on her and she was asleep in her toy basket! So funny! I did not take a picture in fear of restarting the cycle. We are shopping one last night for the big girl bed and then making a decision. I am really looking forward to putting her in a big bed! Lots of laughs with this little princess! Any other suggestions on how to handle this problem?