I live in Florida so I always kept them on my patio, now my cham does not like them but I would have a light on them now with the colder temps of winter even in your house. The cricket breeder I used to get mine from keeps his at about 88-90 degrees. I would get a dome lamp and get a house bulb and measure the temps. When I used to keep mine out on the patio in the summer it was hot and I had very little die off of my crickets! Hey, it is worth a try!!!