Before I moved my plants outside, I typically used my utility room for dormancy. We didn't heat it more than was necessary to keep pipes from freezing, so it got quite chilly in there. Usually mid thirties.
Finished the enclosure for my bog yesterday. The front is hinged, and opens up so I can go into it for maintenance. I suspect the husband will buy or build something nicer for me in the spring, like a small temperate greenhouse.
This is what I have for now: