What size quilt are you planning to make & are you quilting it yourself (e.g., if it's a baby quilt or a lap quilt)?
For babies, you may not want to do with bamboo because I've read that once it's processed into batting, it's really truly "rayon", a synthetic fiber that can melt with fire which is considered unsafe for babies. That said, for art quilts or adult bed quilts, many quilters love cotton/bamboo blends because it gives some puffiness to the quilt while still being warm & breathable. For little ones, I always recommend 100% cotton batting. To get a puffier quilt, you can buy the new Warm & Plush batting. It is 50% fluffier than Warm & Natural/Warm & White.
If you are getting it quilted by a long-armer, they usually will provide the batting for you. And yes, some of them will only work with certain batts. I think that's because they know how to work with it to get the best results. One I spoke with had also designed some kind of contraption to load the roll of batting onto the long arm machine so it would go from one quilt to the next with almost no waste.
Last edited by Bree123; 08-29-2015 at 09:48 AM.