Here's my list of results at your price range. I recommend down for the filling.
https://www.rei.com/search?q=down+sleeping+bag&ir=q%3Adown+sleeping+bag&r=insulation-type%3ADown%3Bprice%3A%24100.00+to+%24199.99%3Bcategory%3Asleeping-bags%7Cbackpacking-sleeping-bags%3Bsleeping-bag-shape%3AMummy%3Btemperature-rating-f%3A20+to+39+degrees%7C0+to+19+degreesHonestly, yeah, that Kelty is probably your top pick. I do see some Women's bags from higher price ranges that are deeply discounted - maybe check them out and see if they fit you. Who cares about a bag's gender branding?
Unfortunately, if you want a really top quality sub-freezing sleeping bag that is also backpacker friendly, you're looking at $350+. But that doesn't seem to be an issue for you
https://www.halfwayanywhere.com/trails/pacific-crest-trail/pct-gear-guide-2022/#sleeping-bags-quiltsYou also want to be sure that you don't neglect your sleeping pad. It's equally important as the bag. The ground is very cold and you will not warm it up. It will sap heat from you to an extreme degree if you are not properly insulated with a quality pad.
https://www.halfwayanywhere.com/trails/pacific-crest-trail/pct-gear-guide-2022/#sleeping-padsLook for a pad with an R value (measure of insulation) of 4 or 5 for near-freezing. An inflatable Thermarest is by far the best brand and style.
