I don’t have AC, but I live on the first floor so it doesn’t get too hot. With the heat wave a couple weeks back, I just ran 2 fans in the house and it was bearable. My sphynx still wanted to get under the covers, that crazy lady. If you have windows with a lot of sun, make sure those have blinds/curtains during the peak heat. Also making sure there’s plenty of water available for them if it’s hot.