High-quality latex mattress is non-toxic, synthetic latex, also known as artificial rubber, is technically styrene-butadiene rubber. The cost is about 20% lower than that of natural latex, and styrene-butadiene rubber is non-toxic, but the styrene used to synthesize styrene-butadiene rubber is likely to have some residues in styrene-butadiene rubber. At present, the synthetic latex mattress sold in the market has advanced production technology and is made of high-quality materials, which generally does not produce toxic substances, so you can use it with confidence. However, some small brands of synthetic latex mattresses are toxic, because they will add some inferior spices when producing mattresses, which may contain toxic substances, and long-term use may bring certain harm to the human body.