Lay a sheet of batting face down on your work surface. Cut eight pieces of batting that are 18 inches by 22 inches.
Wrap a piece of batting around the front of each canvas, yanking it backward so the batting is taut. Flip each canvas over and staple the batting to the back of the canvas's frame with a staple gun.
Cut eight pieces of the fabric of your choice to 18 inches by 22 inches. Fabrics like faux suede, velvet, flannel, cotton and other soft fabrics are wise choices.
Lay each piece of fabric facedown on your work surface. Place each canvas face down on top of the fabric. Yank the fabric around the canvas, stapling it to the back frame of the canvas by inserting staples every few inches.
Hang the canvases above your bed with a hammer and nails, making two rows of four, directly on top of each other.