MLily is a fast-growing memory foam mattress company in the U.S. that offers beds designed to contour to the body and provide exceptional back support. They are more environmentally friendly because they use plant-based oils and are Certi-PurÂ® tested to meet the highest standards in foam technology. They are tested to have low VOC emissions and are a more natural product than most memory foam mattresses. Each model is designed differently to offer a slightly different feel and support. The high-density memory foam and quality materials offer lasting durability and exceptional comfort at a great price. You can get a similar feel to more expensive mattresses while saving a lot of money when you buy an MLily Memory Foam Mattress. Mlily the Bigger Brand.