This mattress is made out of two layers of natural organic latex which contain no harsh chemicals or glues. The softer top layer combined with the firmer base layer provides the most ideal support and comfort for your body. Heveya natural organic latex mattress is excellent for those sensitive to allergens. The latex core has pincore holes and open cell structure to ensure good ventilation. It is naturally dust mite- and mould-resistant. The organic cotton padded bamboo cover it encased with comes with zipper for easy removal and cleaning. Have a comfortable and hygienic sleeping environment for many nights to come.