Well when providing gradient 85 is not what I call a cool side, a cool side for me (when providing the option of temp gradient which I do from part of the year) is having temps on the cool side maxing out 82 and hot side maxing out at 90.....not are I keep mine since my cool side is 76/78 and hot side 86/88
At 85 ambient temp I do not use a hot spot. https://ball-pythons.net/forums/show...nt+temperature