It's more than the heat - it's "mama" and provides a sense of comfort.Also ... it was in the mid 80s here today and some of them were hanging out under the heat plate! ???? They don't "need" it, but apparently they still like it sometimes. Maybe it was just a nice place to hide and they were putting up with the heat? I don't know but I'll just leave it there for now. Thank you!
You can turn off the heat and leave them the plate for a few days to snuggle against, and then take it away. That's another way of "weaning" them off of it.