The AF truck campers use a 58” X 80” mattress, regular queen would be a pretty tight fit.
I'm in a discussion group of Arctic Fox owners with about 5000 members. People that have replaced a mattress have always use a normal queen size.
U might want to join the Facebook community of Arctic Fox Truck Campers for some more input…....
Arctic Fox 990 2021 TORK-LIFT FAST GUNS AND SUPER HITCH
COOLER RACK OFF THE FRONT ALWAYS FULL OF FISHING RODS TICA TO BE EXACT
Grit dog wrote:
Memory foam doesn’t need to be a custom order. Just cut to fit.
Freezing? Ive never heard that but I suppose I believe you. However does it make a difference in your decision? There is nothing reasonable you can do to prevent that (if it’s actually a thing) that is remotely as cheap as losing, say $50 worth of “expected use” out of it.
Or bring it inside in the winter and keep it cozy by the fire until the robins are gettin worms again in the front yard.