It's normal for cats to sleep a lot. Cats are nocturnal animals, so they are generally active at night. They expend a lot of energy at night, so they choose to sleep during the day to replenish it. As long as there are no other abnormal conditions, this is normal. Studies have shown that wild cats sleep about fourteen hours a day, while domestic cats generally sleep longer, between sixteen and eighteen hours. Cat sleep is divided into deep sleep and light sleep. Sometimes, cats appear to be asleep, but they are actually dozing off in light sleep, and their brains remain highly alert. However, if a cat's excessive sleepiness is accompanied by other symptoms, such as lethargy, drooling, runny nose, or abdominal pain, it needs to be taken to the vet immediately. 
How to create a warm and comfortable home for your cat:
1. Place an extra soft blanket inside the cat bed to enhance its warmth.
2. Lay a rug in a sunny spot in your home so your cat can sunbathe warmly, and try to minimize the time your cat spends outside.
3. If the cat's bed has windows on all four sides, you can close some of the windows to reduce the amount of cold air entering.
4. Prepare a small heater for the cat to keep warm, or you can adjust the temperature of the whole house by turning on the heating.
