During my trips to Colorado, Arizona, Nevada, New Mexico and Utah from 10/23 to 11/9, I slept 14 nights in my Sienna although I checked into campground for security concerns. Rather than sleeping in tent, I felt more secure sleeping in my Sienna which provided me with better shield from the outside factors.

As I stayed on high plateau areas, early morning tempearatures were quite low but Sienna shielded me well from the outside wind and cold.

Lowest outside temperature measured were 22 degree Fahrenheit and early morning outside temperatures where I camped out were around 27 - 31 most of the time. Once it reached 33, I felt so warm.

Any watery substance outside were frozen until late morning during my trip, which never happened in Los Angeles where I lived.