Here at Sweet Zzz we are passionate about making products that are healthier for you and the planet. Our wool and cotton come from sustainable sources. Our natural latex comes form rubber trees that are not harmed in the process. We only use non-toxic and healthy materials in our mattress. That is how all the Sweet Zzz mattresses are class 1 of OEKO-TEX certified meaning they are safe for babies under 3 years.