. . . in the North country, it doesn't matter if you keep the heat up when it's cold - because leos will noticed the change in the photo-period and/or other internal indicators, and will slow down in their eating.
Not to fear - as long as they are healthy to begin with. When I noticed this happening, I could lengthen the time in between meals, and put less prey items in the tank. Some of my leos slowed down for months, literally, and at the end, weighed the same as at the beginning of the fast.
You gotta have the "zen" to know when to just relax and live in wonder over the complexities of nature.
Good luck.
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Monte Meyer
Powergeckos
Email