I got Polo when I was a Jr in college (2005). He lived with me in Santa Cruz for a year and then I moved him to my boyfriends apartment for the next year. Small super pet cage, plastic water bottle, kaytee food with all the fun pieces of corn and green thingies and sunflowerseeds and such. Also temperatures of 90 or more. In Santa Cruz I didn't have a working A/C so he just sat through it. I did get him a chinchiller to sit on but with temps hitting 90 I don't think it cooled him all that much. At my boyfriends apartment, well, its in the central valley of CA and it his 110 regularly over the summer. They only used the A/C when they were home so Polo sat in the heat all day until someone came home to cool him off.
Oh yeah! He also chewed a hole in the bottom of his cage at my boyfriends apartment so we shoved a towel through the hole so he couldn't get out. lol.
Polo is alive and kickin still. He now lives in a FN with his buddy Baba. They have tubes, wheels, hammocks, tons of toys, quality food, and hay. I also tend to run the A/C MORE when i'm not sure to make sure there is no heat stroke.