BTW, when I say warmth I don't mean hot, I just mean they don't like temps too low. If you can maintain around 20-25 degrees Celcius you won't have a problem. If your house gets colder than that, try one of those vivarium heating mats underneath it. Mine stay inside all the time. The biggest is in a pot of loose sphagnum and perlite with half a 2L plastic soda bottle over the top to maintain humidity.