The temperature you set on your aircon might not be the actual room temperature, depending on the age, brand, efficiency of the aircon. Plus most sources I've seen says the ideal temperature is 20-22 degrees. Just go with whatever you feel baby would be comfortable in. Our own rule of thumb is if we feel slightly cold, baby would be happy. If we feel just right then baby would feel hot 😅. You can a bowl of water in the aircon room to prevent drying.
@vannyaudrey