Right around 3 weeks of age, after the time their little eyes have opened, but before they can hear, puppies will start eliminating on their own. With this new independence comes a natural instinct to have a "clean den"; therefore a puppy will move away from where it's sleeping to relieve itself. For us, this is the beginning of Potty Training. We want to support their natural instinct by giving the puppies a defined sleep or nest area with a potty area just a step or two awa