Søren seems to always be hot, even when it's fairly cool outside. We don't have central AC (no one needs it in San Francisco), but when we visited my parent's house, he slept on the vent every time the AC was on. Mostly he sleeps in his crate at night, but he always moves the crate pad out of the way and sleeps on the plastic tray. When he's not crated, he sleeps on the tile behind the toilet in the bathroom.
I'd like to get a bed for him that he'd want to sleep on. Any suggestions? Has anyone tried the Coolaroo bed?