If you are looking for the safest mattress for babies, pay attention to the materials. Non-toxic crib mattresses have has no chemical flame retardants, pesticides, bleaches, or dyes. Additionally, they are made from natural latex, organic wool and cotton, recycled steel and polyester, and coconut fibers. u003cbr/u003eu003cbr/u003eWhen choosing the best organic mattress for a crib, ensure that it offers optimal support for healthy growth. Remember, soft mattresses can create suffocation hazards. A GOTS-certified crib mattress designed to allow air to flow through is the safest option.