Costco fans can't get enough of this six-piece sectional, filled with feather-wrapped foam and carrying a cloud couch ...

Most couch cushions have a foam core wrapped in a softer and more pillowy material, like polyfill, feathers, down, or a blend of all three. High-quality foam and filling are the most important ...

The choice depends on how firm you want your sofa. “My favorite is memory foam for seating cushions,” Garcia says. “However, I prefer to use feather stuffing for the backrest cushions.