I'm sort of wanting to try some winter camping, but don't have a good 1/2 person bikepacking tent right now. I'm looking for a smaller, lighter (sub 4 pound), tent but almost all of the ones I'm seeing in my price range (under $200), are mostly mesh body with a separate rain fly. With a really good cold weather bag that's rated to minus double digits fahrenheit, along with wearing good insulating base layers in the bag, like Merino wool long sleeve top and bottoms, would such a three season tent be suitable. I can't imagine actually wanting to camp if the temps were much colder than down into the 20s or teens, let alone single digits, or sub-zero temps. Thoughts, suggestions?