Fabric- heavier weight is best
Pencil or fabric marker
Sewing Machine with matching thread
First I cut my fabric to measure 18” by 40”. (the pillow I was using measures 18×18”)
Then I measured 11” on one side and marked it.
Then I steamed each side down 1/4” with a hot iron.
Then I folded both side in, letting them overlap. I used my marker at 11” for one side and the other I just folded until it overlapped about 3 1/2 inches.
Then I sewed both side (but not the overlapping sides). That creates your envelope.
Turn it inside out and stuff with pillow and you are DONE!
Total project time was only 30 minutes.