Why Do they like Cold so much??

[stratus_020202]

Does the digital thermometer have a probe, and if so is the probe on the bottom of the enclosure on the tub, right above the UTH?

For humidity, you should aim a little lower, like between 50%-60%.

Raising the temps will NOT stress them out. It will keep them healthy

X2 for me 2 11X11 and only covering 40%? Sounds like a pretty big tub. How big is your ball python? It sounds like one of the tall tubs, but I could be wrong. It would be easier to keep it warm in there if you use the short, long tubs. Like the ones that fit under a bed frame.