Simplify the following text for a Grade 10 native English-speaking person.
Original: They wanted disposable nappies \/ diapers .
Simplified: Diapers can be made of cloth ( usually cotton ) that can be washed and used again , or diapers can be disposable ( put in the garbage after they are used up ) . Disposable diapers are usually made of plastic or man-made ( artificial ) fibers and contain chemicals that are super-absorbent .