Some customers are concerned due to a having a wool or latex allergy. These allergies usually do not present a problem as they are mostly triggered by touching the offending material. With a Dormio mattress however, you never come into direct contact with those materials -- the Organic Cotton mattress cover insulates you. If you have any concerns regarding an allergy, don't worry! All of our stores have samples of our latex & wool and we will be happy to send you home with a sample that you can place in your pillow and test for any reactions. Some customers are concerned due to a having a wool or latex allergy. These allergies usually do not present a problem as they are mostly triggered by touching the offending material. With a Dormio mattress however, you never come into direct contact with those materials -- the Organic Cotton mattress cover insulates you. If you have any concerns regarding an allergy, don't worry! All of our stores have samples of our latex & wool and we will be happy to send you home with a sample that you can place in your pillow and test for any reactions.