Turn the duvet cover inside out
Reach inside and grab the two top corners
Hold the duvet cover open and shake it down over the duvet
Align the top corners of the duvet with the top corners of the cover
Pull the cover down over the duvet evenly
Shake and smooth the cover so the duvet spreads out inside
Fasten the buttons, zipper, or ties at the opening
Fluff and adjust the duvet inside the cover