I have had three down comforters in the past 20 or so years, all with the square sewn baffles.
When the comforter is new, is the down supposed to be evenly distributed among all the square baffles? If not, why not?
Is the sewing that makes the baffles supposed to prevent down from moving from one square to another? Absolutely, or only mostly, or not at all?
I am posting this in IMHO because I realize there may not be factual answers that cover all such comforters, but if anyone has any actual professional knowledge or experience with down comforters, I’d love to hear from them especially.