This is true, though I think you have an exception to the norm with that one.
Plus most baby snakes I've seen are even less likely to accept it that way than adults as far as ball pythons go, so that can make a difference too.
OP - You will definitely need to get a thermostat ASAP. It is tied for 1st place as the most important piece of equipment for owning a snake along with the enclosure itself.
I've saved this handy-dandy picture for how to set up thermostat probes, so I'll leave that here in case it is confusing.
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