As many memory foam products are made or polyurathane, many high-quality memory foam products are also made from all-natural materials such as natural latex. Natural latex and memory foam is naturally hypo-allergenic, anti-microbial, and dust mite resistant. The kind of latex many people are allergic to is a different kind of latex, such as that used to make latex gloves and other products. With the benefits of natural latex and all-natural memory foam material being considered, it is always a better choice to look for those memory foam mattresses as well as other memory foam products that are made from all-natural memory foam material in order to take advantage of the benefits that memory foam products can provide. Always make sure your mattress is 100% natural latex and no fillers in the mattress materials if you desire the benefits of all-natural memory foam or latex materials. The material used to produce the memory foam mattress is usually the case for extraordinarily cheaper memory foam mattresses for sale through many already questionable retailers as many of the memory foam mattresses they sell consist of synthetic materials. The real all-natural materials are not cheap to produce which is in many cases reflected in the price of the memory foam mattress. So make your decisions with all of these considerations in mind.