Hemp, Cotton, or Bamboo? I know this is odd but... I am making a hammock for my rats. They will be filled with something to help keep them cool in the summer (this something will have a PUL cover so any accidents they make will just drip off). My question is about the outer fabric. I was considering hemp and bamboo cause they are both earth friendly, are likely to not have chemicals, and seem softer. If you don't know what would be comfy for a rat, imagine you had a baby that liked to destroy things. What would you use then? I need something strong but soft. I came here figuring a natural mom would know best since diapers have to hold up to abuse. also which one would make the best insert for a diaper and why? Thank you ya know...I don't care about your opinion on rats. I only want your opinion on fabric so please stick to that subject I know this isn't parenting but I do know these are common fabrics used in cloth diapers and I know some moms prefer fabrics over others.