Oh....poor you! Not a pleasant thing to find near the end of the day! Sorry, I have no advice, just sympathy!!!! I will mention that my own just turned 2 daughter is obsessed with taking her clothes off....because she just learned that she can!!! Luckily she does not do it in her bed and never takes off her diaper! I think this is fairly common. I would just go with a big body wipe down and leave parents to do proper bath. I have plastic sheets under my pack and play sheets just in case.