Might can quilt

5 ounce Apex is supposed to be good down to 30 F.

1.1 or 0.9 ounce nylon would be good. thruhiker.com, owfinc.com for example

thruhiker had 0.5 ounce for a while but I don't think anymore

down is hypoallergenic, you are allergic to dander found in cheap, unwashed down.

get some good down from any of the cottage retailers, where it is washed several times with a plant fiber called syriaca which is like a dander magnet.

Thanks for your help.
Maybe it is time to try down again. I remeber reacting to the down pillows as a kid and the michelin man coats as a teenager. (that was a long long time ago)

As I look into this project more, the above is more of a bag with a fabric bottom and not a quilt. I like the freedom of a quilt – esp. in temp regulation.

There are some fine posts and how to's on this site.

Dave

i have insane reactions to cheap down pillows, asthma – puffy itchy eyes – for instance. but now i work with down and have no troubles. interestingly, hungarian down is less likely to hold dander and mites due to it's shape and is easier to clean.
i suggest purchase one ounce of down and make a little backpacking pillow. see how it goes for you. i hope you can get by with using it and have no negative effects.