Bamboo-fabric is an excellent choice for the layer against your baby's skin because bamboo is...

• as soft as silk
  
• warm when it is cold, and cools you down when it is hot, because of the hollow structure of the fiber
• very absorbent, thus feels dry on the skin
  

Bamboo is an ecological choice, because it...

• is one of the planet's fastest growing plants
• grows without fertilizers or pesticides, and only requires minimal irrigation
  
• releases 35% more oxygen to the atmosphere than a tree
• is harvested in a way that leaves the root-system in the soil, which helps to prevents soil erosion and landslides

Commercially grown bamboo for fabric is not panda food, but a different species altogether.