Why a single percentage is misleading
Heating or cooling demand changes throughout the night. A mild, sheltered evening is not comparable with wind, freezing temperatures or strong sun. Vehicle configuration, battery temperature, selected cabin temperature and other powered features also matter. Tesla's manual tells owners to avoid Camp Mode at low charge but does not promise a fixed hourly consumption rate.
Plan from the car, not a generic average
- Check the forecast and the route to the next charger.
- Run Camp Mode for an hour in similar conditions while you are awake and record the change in your own vehicle.
- Leave a meaningful reserve beyond the observed rate for colder or hotter conditions.
- Monitor charge and climate through the car and app; do not let an estimate replace judgment.
Camp Mode may enter Low Power Mode or stop because of a vehicle issue. The Tesla climate-control manual is the primary source for current behavior. A forum percentage can be a trip report, but it is not a forecast for your night.
Conservative decision rule
If the remaining charge would make the morning drive or an unexpected detour uncomfortable, charge first or choose a powered campsite. No mattress or efficiency trick substitutes for adequate range.
Plan the whole Tesla sleep setup
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