Sounds like it was good sleeping weather.
I have heard that one of the "condensation" factors is human expiration in a tightly sealed small RV. Did you keep a window cracked?? Any problems with condensation?
I have been after DH to replace his cotton sleep socks with wool/silk/polyester and use a night cap...so far no good, but those little actions (plus moisturization small amounts petroleum jelly) sure helps me sleep warm on cold nights.
And hydration is very important for staying warm.
"The island is not sinking!" Eric the Viking