simple past tense and past participle of quilt
"After her grandmother finished sewing the pattern onto the fabric, she pressed it flat to ensure the stitches held firmly."
made of layers of fabric held together by patterned stitching
"She ran her fingers over the soft, quilted backrest of the vintage armchair, admiring how the diamond stitching kept the padding firm and cozy."
Having the characteristics of a quilt; specifically, having two layers of cloth sewn together, with a layer of padding between them.
"The heavy winter coat was so warm because it was fully quilted with thick down insulation sandwiched between the outer shell and lining."