When it comes to polyester sheets, you’ll probably see a lot of microfiber options. This basically means the polyester used in them is incredibly fine (about one-hundredth of a human hair).

What you need to know: This imported polyester microfiber set provides you ultimate comfort, no matter the season or weather. What you’ll love: These sheets are made in an Oeko-Tex Standard 100 ...

but they’re a great way to know your bedding is safe and thoughtfully made. Microfiber is a synthetic fabric made from incredibly fine fibers, typically polyester or a polyester-nylon blend.