The Cushion Cover is a great use for scrap fabric or clothes that people dont use or wear anymore. Most cushions are filled with foam or some other poly material depending on how much comfort the manufacturer is looking for. Pillows are used a lot. We spend about a third of our lives sleeping on them. In addition, they are often used throughout the day for napping or just laying down to relax. Using zippered covers is a great way to quickly wash off pollen and other allergens. Even indoor pillows can collect allergens such as dander and dust. Cushion Cover is very useful.