The flannelette is also antistatic to reduce the build-up of static electricity. Kids will love the fun animal patterns! Machine washable for easy care, these sheets are an essential part of any bedding set. These sheets are made from 100% pure cotton and are naturally hypoallergenic and thermoregulating, making them gentle on sensitive skin. They are also brush surface to help trap air and create an insulating layer, as well as being antistatic. They are machine washable for easy care.