Product Dimensions: Length (182.88 cm) Width (177.8 cm), Height (12.7 cm). Primary Material: Foam. Bed Size: King. No Assembly Required: The product is delivered in a pre-assembled state.  Mega Extra Firm Coir Mattress is a type of mattress made from coconut fibers, also known as coir. The coir is compressed and molded into a mattress shape using natural latex, which is a plant-based material. This process creates a dense, supportive sleeping surface that provides exceptional firmness and durability. The mattress has a tight, even surface that helps to distribute weight evenly, reducing pressure points that can cause discomfort and pain. The coir fibers also allow for excellent airflow, which helps to keep the mattress cool and comfortable throughout the night.