I think, I see in the photos on the outer side of the tent frozen dew.
Dew is like rain. It comes when it wants to, and you can't do anything against, and it comes often!
Only a fire heated cotton tent really helps here, because that dries out the fabric.
In the conditions you show us, every plastic tent would have become whet from every side!!! Every construction!
It was simply an incredible whet night.
If it's less bad, if you don't have dew, but ice from inside, it would help to let the entrance open. I usually close the entrance only in heavy rain and storm.
I have a Hilleberg Nallo 2 tunnel, what should be better constructed, but its very similar. Hilleberg recommends it for 3 seasons.
For winter camping Hilleberg sells the Nammatj 2.
The single vestibule, 2-person, all-season Nammatj 2 tent is a superb choice anytime great strength and reliability at a remarkably low weight is needed.
europe.hilleberg.com
I don't mean, you would have to buy one, but here you see, that it's far easyer to air it.
I am totally convinced about the following rule:
Hilleberg doesn't sell every tent main construction, no cotton lavvu, no Military poncho, no pyramide tent.
But always if they sell a type, they found the perfect size and shape, the perfect construction. This tent must been made like this, every thing else is made wrong.
So if there is a difference in another product, usually it's a more or less heavy fault.
Believe me, I have seen a lot of tents in my life! The largest shops sell them in Berlin next door from me, and I currently live round about 6 month a year on different camping grounds, changing the place every second or third day.
The Nallo 2 has the airing window at a different place. The Entrance can be open in the higher part during the night, the lower part can be closed, making a protection wall, a wind shield where you have the head.
The single vestibule Nallo 2 is a superb all-around, all-season, and lightweight 2-person tent.
europe.hilleberg.com
