Cotton is a fiber (from the cotton plant). Flannel is a finish or weave. Hence you can have flannel wool as well as cotton flannel - i.e wool made with flannel finish or cotton made with flannel finish. Hope this helops.
A very memorable song from Joni Mitchell that featured the line They paved paradise and put up a parking lot.. This best described places I remember growing up in Bloomington, MN in my teens where numerous places were torn down, most notably a restaurant I frequented that was replaced with a Park and Ride lot.
Mike Reno & Ann Wilson:Almost Paradise Lyrics. This song is by Mike Reno and Ann Wilson and appears on the movie soundtrack Footloose (1984) and on the album Loverboy Classics (1994) by Loverboy. was a Billboard Hit!