Just
In general - screen = no blowing snow, in other words, not 4 season.
4 season tents do not have screen.

Lori et all, though Shug and phat do hammock at extremely low temps, their setups are heavy and cumbersome and not for use in exposed areas. Wyoming may be too exposed everywhere to camp in winter. I have never seen Shug camping at -30 in strong winds. Though you may personally think hammocks are best for everything because some people push the limits does not mean that hammocks are a good idea where winds would carrry away your tarp.

Jim
Jim
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These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.