Nestlets

Nestlets is a type of material that is perfect for nesting in addition to standard bedding, made from pulped, virgin cotton fibre. It encourages rodents' natural instinct to shred material for nesting building, adding extra interest and beneficial exercise. It retains warmth without obstructing airflow.
Nestlets has been sterilized during manufacture, therefore it is sufficiently pathogen-free, will not compact or form thread and its composition is non-desiccative nor causing irritation, hence it is suitable to be used for most purposes, even for newborn rodents.