Our patented comfort panel consists of extra material that is sewn to each side and runs the full length of the top comforter. The panel covers the zipper so if you prefer to sleep with it zipped up, you do not feel the zipper.  If you prefer to sleep with it unzipped, it extends out for just the right amount of full coverage. For both the "Minky" and "All Cotton" versions, the comfort panel extends beyond the zipper 8.25" for toddlers, 9.75" for twins, twin XLs, and fulls, and 11.75" for queens and kings. Select styles of king and queen will now have 15" comfort panels.