The Heveya I is the step-in model. No nonsense with this decent, 100% natural organic latex mattress. The elasticity of latex coupled with the 7-zone mattress design provide the comfort and support your body needs. Heveya natural organic latex mattress is excellent for those suffering from allergies. The latex core is breathable so it prevents moisture build-up. Organic latex is naturally dust mite- and mould-resistant, without the need for additional chemicals. It is encased in a removable organic-cotton-padded bamboo cover for easy cleaning.