Why do some people like polyester sheets and others cotton?
There are advantages to each type of fabric. Polyester tends to provide a wrinkle-free sheet and is soft hand, whereas cotton provides a crisp, cool feeling. Polyester/cotton blends are often chosen because they can include the best of both worlds. Polyester, however, can pill over time and after many launderings. Cotton does not have this problem and will remain crisp for years. Cotton tends to gain softer hands over many launderings and is well loved for this factor.