Cats barking at five or six in the morning are usually caused by hunger, boredom, dirty litter box, missing their owners, etc. If it is because of hunger or dirty litter box, you can prepare sufficient cat food and food for the cat in advance. water, and then clean the litter box the night before; if it is because it is bored or misses its owner, you can prepare toys for the cat, such as wool balls, cat scratching posts, and cat climbing frames, so that the cat can play by itself.
Tip:
It is best not to let the cat sleep for too long the first night to avoid the cat waking up too early.