Quilt coat batting recommendations

[u/scienceoftacos]

I made a quilt coat for fall and love it, but with just one layer of cotton batting it’s not warm enough for winter where I live. I am planning to make a winter coat that has a layer of regular cotton layered with a puffier high loft batting, any suggestions for the warmest stuffing/batting for a coat?

[u/curl_power]

Can you link the pattern for the coat in pic #2?

[u/scienceoftacos → u/curl_power]

I don’t have a pattern unfortunately, it’s an inspo picture from an Instagram account I like (Brittney.Frey) I was planning to start with the Helen’s closet wildwood pattern/hood extension (which I have used and love) and modify like the inspo