I love bivys for what they are made for.

No need to apologize for this. What "bivy" is an abbreviation for is bivouac, meaning an impromptu, unplanned night out. If you find yourself forced to bivouac for a night, a bivy bag is a godsend compared to hunkering down with no bivy bag. But comfort was never the idea behind the bivy bag, just something a step up from bare survival.