The easiest way to put the insert into the cover is to fold the insert in half like a taco while squeezing as much of the air out. While holding the folded insert with one hand, use your other hand to pull the cover over the insert. Then reach inside and match the corners of the insert to the corners of the cover. Match up the seams too so your insert isn't twisted. Zip up the cover while pushing the insert away from the zipper so that nothing gets caught in the zipper. Finally, punch the pillow a few times to even out and fluff up the filling. Enjoy!!