Cream duvet cover with navy piping

I lost my queen-size cream duvet cover with navy piping yesterday around 3pm. It was hanging on the back of my bedroom door after I did a quick wash in the laundry room of my apartment building off Grand Ave in Des Moines. The fabric is soft cotton with a tiny navy monogram 'SB' stitched in the inside corner. It was a gift from my mom and it means a lot to me, so I'm really hoping someone picked it up and can return it.