The duvet cover set is flimsy and see-through.  I spent a full half-hour trying to determine which end was the width and which was the length.  I gave up and tried to cram a duvet into the cover set but still couldn't tell if I had stuffed the correct end of the duvet into the cover set.  A real problem is the flimsiness of the set.  Trying to stuff a much firmer duvet was a test of my patience.  I actually had to crawl into the sac and pull the duvet in.  Awkward, awkward, awkward.