@Itisi Ahhh so I need to wrap my tent in blankets or summa that?
I'm in a tent for the first time ever and dealing with the same thing. Crazy a 70pint dehumidifier is filled in 40 hours in a 5x5 tent. Outside is 40 and tent is 70. It's temporary so I did add some movers blankets which I already had. Foam is to expensive for a temporary setup. Better than extreme heatI bought 4 inch building insulation to do one of mine.