Finished sewing my summer under quilt. Sew-thrugh construction. Its not a typical square, so I'm not 100% sure how much down to use. Its 39 in. x 68 in. So baffles are 6.5"x 68". There is 1 1/2 inches of slack on the side away from hammock. Hammock side is 39 in other side was 48 in. I'm thinking 1 oz per chamber 6 total, but I'm not sure.
I have included some pictures. Orange side is agenst hammock, black is side away. As it lays its 3.32oz. I,m looking for it to be good to 35* to 40*