My primary sleeping pillow needs replacement. Are any of you recent shoppers of down pillows? Everything is mail-order these days so I feel I’m flying blind. I’m particularly curious about experiences with the brands: Brooklinen, Boll & Branch, and Kassatex, and Lincove, but I’m open to other suggestions, as well. FWIW: I’m a side sleeper but often with my arm directly under my pillow.