It may seem strange to us humans, but dogs love small, enclosed spaces. A dog cage can be a place of comfort and safety for your dog, giving them their own special area that they can curl up, all snuggly and warm. When used correctly, not only are they a source of comfort for your dog, they can also help with any sleeping or destructive issues your dog may develop as it grows from puppy to full grown adult.
Alternatively, for puppies that like to wander and chew, investing in a play pen can be the perfect way to keep them under control while still giving them space to move around. All pens and cages fold away flat to allow for easy storage, meaning you can use them for future generations.