I agree with ckcowl and have no new information really. I did just try bamboo batting several ways. I prewashed and dried it to eliminate some of the fuzz. It worked great for machine quilting, hand quilting and tieing. It is soft and snuggly, but not thick. And it is not stiff like Warm and Natural. I have yet to see how it feels to sleep under. Poly batting always feels like a steam blanket...although it is thick and snuggly the way you wanted for tied quilts. The wool breathes the best and is the most comfy. It is more pricey but seems to hold up longer too. Surprisingly we have had no allergy problems with the wool.