I know that anything scented (candles, glade, etc) is a bad idea for snakes - so what about un-scented things? The reason I ask is that I have an extremely anxious cat that can't tolerate anti-anxiety meds. There is however a stress-relieving pheromone that works wonders in the clinic that I would like to try. It is a plug-in that looks similar to a glade plugin, but instead of heating and releasing a scented oil, this one heats a liquid that contains the pheromone that lactating female cats release when feeding kittens (the "everything is fine 'casue mom is here' smell). There is a slight warm smell when they are plugged in, but other than that the smell is not detectable to humans. Since snakes can smell way better than cats, I am concerned the pheromone may upset him in some way.

The product is called Feli-way or comfort zone - if anyone else uses these let me know please.