Size options available. Liquid gel infused engineered latex for cool surface. Stretch poly-cotton knit cover. Breathable mesh fabric side panels release air for added comfort. Bottom layer of high density foam for support and durability. Removable and washable cover. Foam responds to body heat and movement. Eco-friendly design. Keep cool and comfortable with the Lane Cool Posture 12 in. Gel Engineered Latex Mattress in your bed. Designed specifically to respond to your body temperature and movement, this mattress features Gel Flex foam that creates a cool sleeping surface and springs back to its normal shape after you move. Inside, the mattress features ventilation to allow air flow. This mattress is eco-friendly and includes a poly-cotton knit cover that's removable and washable.Dimensions:Twin: 75L x 38W x 12H in.Twin XL: 80L x 39W x 12H in.Full/Double: 75L x 53W x 12H in.Queen: 80L x 60W x 12H in.King: 80L x 76W x 12H in.California King: 84L x 72W x 12H in.