I’m going to share with you a trick that I learned from a colleague. One easy and organized way to keep sets of sheets and bedding together is to take one of the pillowcases and put the rest of the sheets and pillow cases in it. Carefully folded of course. Then store the bundle in the closet or drawer. its saves time in looking for all the parts of a sheet set. Its helps with space too.
Also, it help with linen closet organization. When you initial do it, if you find that you are missing parts to a set, its time to get rid of the set. You can turn the sheets or pillow cases into dust rags or donate to a local shelter or thrift store.