Turn the duvet cover inside out
Lay the duvet cover flat on the bed with the opening at the foot of the bed
Lay the duvet insert flat on top of the cover, matching the corners
Reach inside the cover and grab the top two corners of the duvet insert
Pull the cover right side out over the insert
Shake the duvet so the insert settles into the corners
Align the corners and edges
Close the buttons, zipper, or ties
Smooth the duvet cover flat on the bed