Everything you need to know, explained for EV owners specifically.
If you have Camp Mode or climate control, you can use any mattress type year-round regardless of R-value — the HVAC does the insulation work. For cold-weather camping without climate control, choose R-5 or higher. For summer or EV camping with climate, R-2 to R-4 is plenty and saves weight.
R-Value measures thermal resistance — how well a mattress insulates you from the cold ground or vehicle floor. Higher = warmer. This matters differently in EVs than traditional camping.
Traditional campers must rely on mattress insulation to survive cold nights. EV campers with Camp Mode have a backup: the HVAC maintains temperature all night on battery. This means you can use a lighter, lower R-value mattress and still sleep warm. A R-2 mattress + Tesla Camp Mode often outperforms a R-7 mattress in a traditional tent.
Select your EV to see verified interior sleeping dimensions, mattress fit guidance, and camping tips — all in one place.
| EV Model | Length | Width | Headroom | Max Mattress | Floor Flat? | Camp Mode | Cargo Down | Best For |
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Based on the industry-standard formula: 100 lbs additional weight ≈ 1% range loss. This reflects real-world EV physics, accounting for rolling resistance and minor aerodynamic effects.