Thanks MarkG for the advice. I'll definitely get a frozen bottle in there once I get one... Our apartment faces west, and due to how our room is at the moment - and the fact that we didn't plan on having a snake when we signed the lease for the place - we unfortunately have his tank in front of the one window that faces west. I have a window fan there now, but once I get paid I'm getting blackout curtains for that window and keeping it shut.