Pups and some adult dogs are extremely inquisitive, especially if they get bored. They may chew or destroy hundreds of dollars worth of furniture and property, and can even harm themselves by chewing electrical cords, plants, or raiding garbage cans, etc. We all know that babies need constant supervision unless confined to the safety of a crib or playpen. Treat your pup the same way - confine him when you cannot supervise. And when you do come home, the pup will not be able to jump up or run out the door.
Many people have difficulty getting a new pup to sleep through the night.
When left alone, the pup begins to howl or cry for company and attention, because he has never been separated from people or other dogs. You must not go to him as this just encourages the crying. Using cage training you can practice turning out the lights and leaving the room for short periods. By night time, the pup should be accustomed to being alone. Another alternative is to put the pup in the cage in your bedroom at night.