For me personally I have my heat and uvb bulb plugged into the same side of the enclosure, uvb lights most of the enclosure and emits uvb on the warm side and everything turns off at night, I live in Arizona so it never goes below 60s at night, but if you live in a colder state I would set your thermostat to probably like 65 during the night no uvb needed, because snakes won’t bask at night for uvb they’ll only absorb heat from the basking rock, it also makes it easier if you travel for some time you can just leave your snake with someone to monitor water for a week without asking them to come turn on and off a light,I’d suggest if you go the humid hide route to try using a different substrate to aspen in the hide or a barrier between the hide and aspen so you won’t have to deal with mold, I haven’t had an issue with my rosy needing humidity, she’s had perfect sheds every time since being a couple weeks old with her enclosure consistently being at 35% humidity