Take your fitted bed sheet and spread it on an even surface with the wrong side facing you. Make sure that the surface on which you spread your sheet is entirely clean to avoid any staining.
Next hold the sheet from the corner and fold the bed skirts inside the wrong side.
Once you fold the entire skirt take one edge of the bed sheet and fold it by positioning the edge in the middle. Make sure you do it lengthwise. Now fold the other edge of the bed sheet in the similar manner. Folding in this way will give you a shape of rectangle.
Now that you have made the lengthwise fold hold the sheet from these folds and join the short edges of the folded sheet together. Then give it two more folds or as many folds that can fit into your closet shelf. Another convenient way is to roll the sheet into folds and secure it with ribbons. This will also make your life hassle free.