A $35 product is reported to prevent blankets and duvet covers from balling up. However, it is unclear what this product is, as various outlets are discussing different bedding items, including reversible quilts, hotel-worthy sheets, cooling quilts, and duvet covers, with some mentioning sales and discounts. The focus appears to be on improving sleep comfort, particularly for hot sleepers, with various retailers such as Wayfair, Target, Amazon, and Aldi offering relevant products.