I thought I would try one out, see if they do work. I have two shelves of bed linens that I don't really use. I don't want to get rid of it because there are real wool blankets, a double feather bed,(came off DS bed when I had to buy him a queen size) some duvet covers that I switch around occasionally.
I cannot believe it. Two and a half shelves in my linen closet are now in a jumbo space bag, flattened to about 4". I have to wait for DS to get home, help me clear a shelf off in the store room, and set it up for me. And yes, I will be buying and using more of them.