Quilts/bedding family:
棉被 (cotton quilt, traditional, heavy),
蚕丝被 (silk-fill, light and breathable, popular for shoulder seasons),
羽绒被 (down-fill, lightest+warmest, premium),
空调被 (thin summer quilt for AC rooms). Look at
充绒量 (down fill weight) and
含绒量 (down content %) when shopping.