Most dogs are active at night, so they will sleep during the day and get up at night to play and scratch here and there; in addition, dogs want to attract the attention of their owners and sleep with their owners. It scratches the ground in the middle of the night to attract its owner. If you don’t like your dog scratching the ground in the middle of the night, you can put your dog in a cage or put something that it is afraid of on the ground where it scratches.