Almost everyone is tempted to request a very warm quilt in January. Trouble is, most of us live in heated homes. While we in Minnesota have looooong winters, winter lasts only a matter of weeks for many of you. Where does your DDIL live? At what temp is their bedroom at night?
That said, you might consider eliminating the batting. It'll still be a cozy quilt - just not so heavy.
Good Luck!