I like the bamboo. I have one oversized twin i finished for my almost 2y/o son. (will be 2 on sunday) It is supposed to be hypoalergenic and or anti-"yuckys" microbial or bacterial can't remember which. I used 100% bamboo and while it did beard a little bit because I had it folded up waiting to be quilted for 3-6 months it is not a problem to get cleaned up. I have washed it and it is wonderful. as with any product I am more interested in what it is made up of. like cotton and what-not. The chemicals wash out after awhile. Like others have said it is processed and as long as you know that going in I wouldn't worry about it.
I love how it quilted up I have also made a couple of baby doll quilts out of the scraps for my dd. and they are sooooooooooooo soft too. I am making a extra large full size right now that will be using more bamboo batting. I would get a small sample of it to try. like a baby/lap blanket size. that way you can try it out and see if you like it and make sure you know if you are getting a blend or 100% and as a side note not all 100% are 100%. so make sure to read the fine print if you are getting it from a package.