Trim the width of both pieces to 33″ (or 22″ for a preemie sling)
Sew the fabrics
wrong right sides together on both long sides and also one of the short ends.
Turn fabric right side out (it should make a big sleeping bag).
Iron the fabric around the edges so that it lays flat, then sew 1/2″ along both long ends and the short end that you already sewed together. This will keep the fabric from rolling into itself.
Now comes the tricky part. Be sure to take your time with this part or you’ll be in trouble!
Fold the unhemmed short edge of the fabric down 1/2″ and iron. I like to fold down the “outside” fabric, as shown below.
You’re finished! Check the length of your sling, fold up and stitch into place any excess. This can either form a pocket or just add a nice thicker tail that’s great for wiping up any messes. I also like the contrast it creates to have the opposite fabric against the front fabric.
A note about materials used in making a Ring Sling:
I suggest only using fabrics that are 100% of a particular material. Mixed fibers tend to stretch more (do NOT buy a stretchy fabric as it will not be safe!), and are also less fire resistant.
The rings that I use to make my slings are purchased from www.slingrings.com. They have undergone rigorous safety testing and come in a variety of beautiful colors. One can use aluminum or nylon rings, but I will only use the metal kind as I have more faith in them and like to use as little plastic as possible anyway. The great thing about Sling Rings is that the colors won’t wear off, and they’re safe for babies to chew on, too! Don’t purchase rings from craft stores–you won’t know how safe they are or are not.
When choosing the appropriate sized ring to make your sling, I recommend using the “medium” size from Sling Rings. I’ve used both the small size for a single fabric sling, and the medium ones for a double fabric sling such as what these instructions are for. The medium size is more comfortable, provides security, and allows for easy adjusting.
A big thanks to www.slingmemommy.com ! They are where I first found directions to make my ring sling. The directions in this tutorial are based off of theirs which can be located for free on their website.