question about down quilt baffles

quick question about the baffles, my google-fu is letting me down. How many rows of stitching are being used to secure the baffle material? 1? 2? or are some of you doing some intricate seam?

thx.

I have never used more than one row of stitches. Also, I generally use a fairly long stitch, somewhere around 10 SPI.

Pika has it right. I just checked my WM Ultralight, and they used a fairly uniform 10 stitches per inch. The baffles should be folded over so that the stitching goes through two layers of baffle material, IMHO.

A single row for me too. It's complex enough to sew with one :/, and needs as little holes as possible.
One or double layers depends on which material is used I guess. I never had trouble with strips of no-see-um baffles, for instance, sewn "flat".

I double the edges of the baffle material too. IMHO it provides a bit better anchoring for the material. It does add a tiny bit of extra weight however.

thanks. much appreciated.