If I could afford it I would use a silk batting. It is thin and lightweight but really holds in the warmth. However, please note my first sentence here.

I use W&N and love it.

W&N, once quilted, is heavy. W&N, while thinner than poly batting, is warm!!

I have used warm and natural for many projects. And they are plenty warm to sleep under single.or double thickness.I recently tried their polyester batting as well and.it seems to have more of that "bulky" feeling you are missing.the.polyester however does not hand quilt well when doubled.hope this helps

Warm and natural is a very nice batting, and warm it is. I do not think I would double it in a large quilt as it would be pretty heavy .

You could use two layers. It will make your quilt heavier. I live in Wisconsin and it gets cold here. One layer on warm and natural isn't enough for me. Everyone else in the house is ok with it, but I'm always cold. The next quilt I make for myself is going to be two layers of batting(I'm thinking warm and natural and a poly). They do make a warm and bright that is poly so it will hold the heat in more but is close to the same thickness as warm and natural.

if my thinking is correct, 2 layers of warm and natural will give the same warmth factor with a lot more bulk. think of how we are told to dress in cold weather...layers...one on top of the other, but still able to remove one and another. also, think of house insulation...the pink stuff. it is lofty, and it holds in the heat, but we can't quilt like that. my idea is to use one layer of w/n and double up on the quilts if necessary. personally, i use a sheet, topped by a cotton blanket, topped by a quilt (using w/n). the sandwich is heavy and warm, and i can peel off the layers if necessary.

I do quilting for friends and some have been using wool batting. It's thicker and heavy. It quilts up nicely you might want to give this a try. It does need extra care when washing and drying.

I can't imagine how heavy a double layer of Warm and Natural would be to sleep under! If you decide to layer it with polyester, remember that the cotton batting will shrink, but the poly will not. I think maybe experimenting with a lap robe or throw might be a good idea.

I use W&N (I have two bolts of it - one Warm and White and one Warm and Naturel)- it will not fluff up but it is warm an toasty in a quilt. IMHO, a double layer might be too heavy in weight - a single layer Queen size quilt is heavy as a whole quilt - but not heavy to sleep under. I would be concerned that with two layers of W&N it would be too heavy to sleep under.

I too live in the snowy north and we currently have one blanket and a quilt with one layer of W&N in it - and both the DH and I are very comfy with it. Loft does not always equal warmth. The first quilt I made was for the DS and had it quilted - the quilter used a lofty polyester batting - looked cuddly and beautiful but turned out that it was not warm at all. He now only uses it in the summer as a bedspread.

If you want the "puffy look" I might think about laying a thin layer of the poly batting over the W&N - it will add the loft with out the weight. Another option is Wool batting or even Bamboo Batting - I recently used those is a few Baby Quilts - they seemed a bit more fluffy and quilted beautifully.

You could also use flannel for a backing - this would add warmth without a lot of weight.

I also use W&N in all my quilts. I don't use quilts in the summer because it's just to hot to use quilts then (JMO). I use the quilts in winter and they keep me toasty & warm!