The 1.1 uncoated nylon is a great fabric for a quilt project. There are "better" but more expensive fabrics out there, i.e. .9 momemtum, but there is nothing wrong with the 1.1.

The Ray Way method is fine, if a little tedious. Basically, you use pieces of yarn that run from the top fabric surface through the insulation to the bottom fabric and back again and are tied in a loop. Space them about a foot apart all over the surface of the quilt in whatever pattern looks good to you.

Other suggestions:
Use different colored fabric for the top and bottom ... this makes it easier to tell them apart in the dark.

Don't make the quilt too small, a common mistake for first-time quilt makers who are trying to make it as light as possible. Too small means cold drafts which makes the quilt near useless. What ever size you decide on, make generous seam allowances so the final product doesn't "shrink" too much during sewing.

Let us know how it turns out ... pictures are mandatory.