There are a few steps that will ensure that you have a comfortable bench cushion made from a French mattress. First, you will need to cut a piece of foam or fabric that is large enough to fit the mattress. Once you have cut the foam, lay it on the fabric and pin it in place. Make sure to leave an extra inch around the mattress edge when sewing the fabric around the foam. After sewing the fabric to the foam, you can start to assemble the cushion.
How to make a French mattress
To make a French mattress bench cushion, you can follow a simple sewing technique. First, cut a length of thread, about 18 inches. Next, thread a needle. Insert the needle into one of the fabric layers and make a small stitch through it. Repeat the stitching process until you reach the end of the thread.
Next, thread a long upholstery needle with a sturdy thread. Pull the thread tight so that you don’t leave any gaps. Sew along the top and bottom edge of the cushion, using a 1/4-inch running stitch. You can add tufting or quilting if desired.
Depending on the size of your cushion, you can also use a piece of fabric that is wider than the mattress. To insert the foam, make sure you cut the fabric an inch longer than the foam. This will make it easier to stitch the foam inside the cover. You can also use a spray adhesive to attach the fabric to the foam.
To sew a French mattress bench cushion, begin by threading the needle with a double-thread. Tie the end in a large knot to make it easier to push through the layers. Once you’re done, push the needle through the cushion from the top to the bottom, and then back up again. You should pull the thread tight as you go. Once you’ve finished sewing the cushion, tie the thread several times, close to the knot, and then pull the thread tight.
Next, you’ll need to cover the foam with wadding. To create the classic French mattress look, make sure that the padding is securely attached to all sides. You may want to use off-cuts for this step. If the foam isn’t flat, you can use a stockinette cover. If you don’t have stockinette handy, you can use a regular needle to stitch the edges together.
First, cut the foam into 19-by-three-inch blocks. Then, cut two panels of high-loft batting that measure 25-by-48 inches. Then, pin the side walls to the top piece. Make sure that the corners line up on all four sides. Lastly, pin the bottom piece at the center.