Warm weather quilt?

I use the Backpacking Light UL 60 Quilt in those temps. I'd guess it's about a 50 degree quilt and it weighs less than the Atom. They are in stock in the BPL shop for only $108 which is a pretty good price.

I'd have to agree with Scott. If I didn't have such a big body, I'd be all over these UL 60's for the price. However, I went with a JRB Springer quilt for this summer. I've used other quilts from JRB's "Large Family" so I know the size is perfect for me. If you have a small to normal size body, go with the BPL UL 60.

Hmmm,

I have a Momentum/2.5oz_XP/Momentum quilt. I augmented the thinner patches of the XP with a partial layer of scraps and it came out to average about 3oz. I've been fine sleeping at 42*F with no other insulation other than a fleece balaclava for my head (which is outsode the quilt). I may have missed this spring's window to find what temp would be too cold for it but am hoping for the upper 30's.

MLD rates their Momentum/2.5oz_XP/Momentum quilt at 50*F.

MAYBE, you could get by with Momentum/1.8oz_PLSport/Momentum plus a light base layer … depending on the power of your personal furnace and what you've fed it.

You can probably get lighter with a sewn thru down quilt but the difficulty with trying to dial in the lowest weight for a summer quilt comes from the fact that you start with the weight of 2 fabric layers before you add insulation and you can't get below that weight. Minor differences in insulation weight end up not making a important difference in the finished quilt weight (unless your goal is an SUL load).

I thought about making a sewn-thru down, but you're right, I realized the heaviest part of the deal is the shell. I do think the down would keep it's loft longer, but for the temps I'm looking at, loft doesn't mean a lot.

Have you thought about Insultex? I just participated in a group buy of the stuff over at hammockforums.net and WOW is this stuff light!!!

tons of possibilities for this material.

Looks too warm.

Joe, take a look at Neatsheet.
its almost like a thick packtowel. cut off the grommets – its very easy to cut to your needs and sew a footbox closed. if you make it 48" wide and tapered you may get the weight down to about 12oz

http://www.theneatsheet.com/size/index.asp

I was looking for something the same. I love my Nunatak Arc Specialist, and don’t want to go back to a ‘normal’ sleeping bag.
I’ve ordered a Montbell UL Thermal Sheet to give that a try. I may even remove the zip to reduce the weight further.