Maybe GQ, but: duvets with columns, not boxes

I am trying to find a duvet/down comforter that only has columns, not boxes, because:

…my first was a gift from an Irish friend brought it to me from Ireland and that is how it was made. I loved it because I sleep hot and I like being able to shake all the feathers to the bottom when it’s too hot and to the top when I am cold. Not possible with boxes.

Them cultured European folk do it like that… does anyone know if there is a specific term for this? Or where they can be found?

Thanks

Just on a whim I looked up “shakedown comforter” and got a description similar to what you’re asking for. Never heard the term before, but there you go!

[Moderating]
Yeah, this isn’t really an art form. Moving to GQ.

What the OP is referring to are “baffle channels” vs. “baffle box”.