The obaby natural coir and wool mattress is an environmentally friendly natural mattress that gives your baby firm and comfortable support the inner core of the mattress is made from coconut coir bonded with latex the coir acts like lots of tiny springs and is covered with natural lambswool which helps to regulate body temperature and is anti dust mite making it suitable for babies with allergies the zipped removable cover is an organic soft touch bamboo fabric and is tough on bacteria and