Sharon. Follow Brad's suggesstions about stuffing down. I tried it in a tent and in a work room off my garage. A small bathroom works best. Just hang the baffle to be filled from the towel rack and fill it by hand using the scale to determine what is left in the down container. A few feathers float around, but they are easy to pick up. To keep feathers from sticking to your hands cover them with chalk. Climbers use chalk on their hands, so it can be found in stores that sell to them. (eg. REI) I also use small binder clamps to hold the filled baffles closed. They are found at stores like Staples. They are also can be used as a substuturte for pins in your sewing projects. They do not make holes.
When one reads all the directions for a sewing project all at once, it is easy to be overwhelmed and discouraged, but when you go step by step as you sew, they will be come clear and easier to grasp.
Warmlite uses vapor barrier fabric in their sleeping bags, inside on the top. They sell the fabric which is 1.4 oz. silicone coated aluminized nylon at $24 per yard