Mattresses made of vinyl and phthalates, as well as those that contain chemical fire retardants, are unsafe for children. It is safer to go for mattresses made of organic cotton and similar material so that the child won’t inhale such harmful substances. Organic mattresses offered by many mattress stores in Sacramento also tend to become good insulators, so it should keep children warm during those cold nights.
Children are especially sensitive to toxic chemicals so care should be taken to limit their exposure.
Remember that not all organic mattresses are alike. For instance, “natural latex” or “coir” may actually be allergenic for your child. Look for a mattress that has earned the recommendation or certification of a reputable organization.