State the corn snake's floor-level temperature targets
A corn snake sitter should read the temperatures where the snake lives, which is on the floor. Write the warm side as the mid eighties to around ninety Fahrenheit beneath the warm hide, and the cool side as the mid seventies to low eighties, explaining that this active species shuttles between the two across the day and will sprawl in the open when both ends feel right. Warn that a thermometer stuck high on the glass reads the room's air, not the snake's world, so the probe for the warm end lies flat on the substrate over the heat source. Give the sitter the out-of-range actions: if the warm side keeps climbing, check the thermostat is switched on and controlling, then call you; if it falls, keep the lid closed and call rather than adding an unregulated heater.
Make the thermostat rule impossible to misunderstand
One rule protects a corn snake more than any other heating instruction: the heat mat or lamp is never plugged straight into the wall. Show the sitter the thermostat, its set point, and its probe position, and explain that if the probe gets knocked loose during cleaning the mat can run unchecked, so the probe goes back exactly where it was, every time.
Describe the modest lighting this species actually needs
A corn snake's lighting instructions are mostly about not overdoing it. This species needs no basking spotlight and no high-output UVB in a typical home setup; what it uses is a clear day and night rhythm, provided by ordinary room light or a gentle lamp on the timer you already run. Write down the timer's on and off times and ask the sitter not to override them for evening viewing, because a corn snake kept under bright light late into the night often stops its normal dusk cruising and feeding behaviour. If your setup includes a low-level UVB tube, note its usual hours and that a flickering or dead tube is simply reported, not replaced with a different type mid-stay.
Connect warmth, water, and shedding in the sitter's checks
Heat, water, and shedding interact in a corn snake enclosure, and the sitter's notes should treat them as one check. Evaporation from the water bowl rises when the warm side runs correctly, so a bowl that empties unusually fast can be an early clue the enclosure is running hot. When the snake's colours dull and its eyes cloud before a shed, a light misting of the warm hide or the damp hide you provide helps the old skin release, and the sitter should report a shed that comes off in torn pieces or stays stuck at the tail tip. Ask them to check that the snake can always reach the cool end, because a corn snake that sits permanently at the cool end with its mouth open is too hot and that observation earns an immediate call to you.
Turn the instructions into assigned daily checks
Written numbers only help a corn snake if someone actually reads them twice a day. Leave a short checklist at the enclosure: morning warm-side and cool-side readings, water refreshed, lid latches confirmed after any opening, evening readings repeated, and any shed or feed noted beside the date. If more than one person is covering the stay, the checklist needs names against each check so a missed morning is visible before it becomes a cold day. That naming and ticking off is precisely what KinsLe Care Teams organises for a corn snake, with each temperature check assigned to a person and marked complete with a timestamp the owner can review.