I have the Katabatic Palisades quilt, no drafts. They offer many sizing options but it is around $400. It is rated to 30F. I have 2 oz overstuffed down in it and it is comfortable down into the lower 20's and have had it to 15F but was chilly. This quilt will weigh 18-22 oz depending on size and down type selected

The benefits to a quilt for me as a side sleeper is comfort as they are far less constraining than a traditional bag. On a warmer night, I can disconnect the quilt from the air mattress and sort of use it as a blanket.

This one is about as value orientated as you can go in my opinion and you can get it in different size and fills, they rate to comfort

https://hammockgear.com/economy-burr...QGsX00&irgwc=1