Re Catalytic heater - I knew that once people read this there would be mentions of my Little Buddy vs cat, etc, etc, etc. I feel I have put enough warnings in at the beginning and the end to do your own research and I think that should be enough. I know people who would say I need to put warnings in about many other things and honestly we have to leave some decisions for people to make on their own.
My opinion on my Little Buddy or even a non vented catalytic heater is that I would not sleep with one on. For many reasons, not just the obvious. I would and I do use my Buddy for many things like extra heat on a cold day, emergency when my battery is too low, etc and I am happy with it.
I also know many people that use other means of heat that are a lot more dangerous than a Buddy or a catalytic and they are fine.
Like mentioned in the article "Do your own research"
P.S. I just read the part that I mentioned that my Buddy was a cat and changed that. Typing one thing and thinking something else!!