New ball python owner, seriously need advice

[YounGod]

After spending a lot of time researching about ball pythons and buying all The necessary tools for the enclosure, I bought my Spider Ball Python just last Saturday at my local Snakes at Sunset. I have a 20 gallon tank, Barczyk’s coconut fiber substrace, heating mat with a thermostat put at 90F, and 3 items to measure temp and humidity. First is a digital thermo/hydrometer with both probes around the “colder” hide area, a dual analog more to the hot side, and a single digital thermometer on the ground next to his hot hide( since i cant stick it on the glass). The heat mat runs 88-91F so i think im good there, but my dual digital and analog thermo/hydrometers dont match well. The analog reads 60sF and 60% humidity even though the thermometer on the same side but on ground is reading 80F, while the digital on the colder side reads 75F and 84% humidity( After putting more ventilation it went 65ish%). Ive been paying more attention to the digital because of its higher popularity regarding accuracy, the temps sometimes go lower at night reaching as low as 71F for some time on the cool hide. I want to know if im doing something wrong. I have a part of the screen lide covered with a black towel and the enclosure is located in my living room here in Miami where the temps go between 78-69 accordingly inside my house with AC. I do plan on relocatig the tank to my own bedroom since where i have it right now is making it difficult for spot cleanings inside the hides( I havent cleaned there yet ). However, ive been hesitant of moving the tank right now since i plan on feeding him thursday and i dont know if the tank’s relocation will stress him out, even though that would mean no cleaning on hides until 2 days after feeding. He was exploring a lot when i first put him there and becomes active at nights. I have read a lot regarding things i could be doing wrong but I think it would be better just explaining my exact situation in different topics to the more experienced ones. Thanks for your time.