coir bed store in trichy growell beds and furnitures trichy a Coir & Foam Mattress is a type of mattress that combines layers of coir (coconut fiber) with layers of foam to create a supportive and comfortable sleeping surface the coir layer in the mattress provides a firm and supportive base. Coir is known for its natural firmness and durability, making it an excellent material for providing structural support to the mattress.