You will need:
- two pieces of fabric
- yarn for tying the comforter
- a darning needle
- quilt batting and scissors
- A measuring device
- A sewing machine.
Once the materials are washed, the next step is to get them square and the same size. My comforter is going to be 60" x 42". Your comforter can be any size, but be sure to buy 1 extra foot of material to allow for shrinkage.
Lay each piece of fabric out on a large surface, folded in half lengthwise, with the selvages even. Measure the fabric, allowing 2 inches for seams, pin it across your cutting line and cut it.
After both pieces of fabric are cut, lay them right sides together and pin all for edges. One one short edge, leave a space at least 12 inches wide which will not be sewn. This will be for inserting the batting once the comforter is sewn and turned. Sew around the edge of the comforter, making 5/8" seams, trim the corners and turn right side out.
Once the comforter is turned, lay it on top of your batting on a flat surface. Trim the batting edges even with the sides of the comforter. One would think that you want to trim it a bit smaller than the comforter, but trimming it even will give you a nice poufiness around the edges when the piece is finished.
Next, roll or fold the batting from the edges into the center. You are going to insert this through the opening you left in the perimeter, and then unfold/unroll it out flat inside the comforter. This doesn't have to be perfect - it just needs to fit through the opening to the inside. You will unroll it with both hands/arms inside the comforter.
Here is a picture with the batting, still rolled, inside the comforter. I left the end out so you could see what I am talking about. Unroll the batting gently, as you don't want to tear it. Once you get the top of the batting lined up inside the comforter, it goes pretty quickly.
With the batting flat inside the comforter, again, pin all the way around the perimeter, including the opening through which you inserted the batting. Whip stitch that opening closed with tiny stitches. Using the sewing machine, sew around the edge of the comforter 5/8" from the edge. This creates that nice poufy border on your comforter.
Before the comforter can be tied, you will need to do some math. Measure the width and length of the piece. You can tie a comforter at any interval you like, but it should never be more than 6" apart. My preference is not more than 5". I've decided to tie this comforter at 5", with rows 2.5" apart and the ties staggered. Using a piece of quilter's tape (which is simply narrow masking tape), I've marked every 2.5 inches, using horizontal and vertical alternating lines. For the first row, I will tie at each vertical mark, for the second at each horizontal mark, etc. All I need to do is to move the tape to the location of the next row, and tie... no need to measure the tie placement in every row!
Note the lines of yarn across the face of the comforter now. Each row is staggered from the row before to add interest. Plus, by tying it this way, it gives the comforter more integrity to stay in tact wash after wash for years. All that's left to do is cut the yarn half-way between the stitches and tie all the ends in knots.