"Cold-blooded software" is a great term for that https://dubroy.com/blog/cold-blooded-software/ (HN: https://news.ycombinator.com/item?id=46488261 )

If you know what you are doing, you can hibernate other kinds of tortoises by placing them in a fridge (as opposed to a freezer). One of my friends does this with their Russian tortoise.

If you need to travel, make sure you have someone reliable who can check on them, in case of a power outage.