Pandora de Balthazar European Luxury Bedding Climarelle Hypoallergenic Pillow, American Queen 100% Cotton Imported The filling consists of two parts; the Climarelle micro-capsules towards the body and Climarelle sleeping fibers outside Cover: 100% cotton cloth with a special temperature equalizing effect on the one side and 100% cotton cloth on the other side Machine wash/dry, easy care The Climarelle capsules provide the equalized sleeping temperature and the sleeping fiber the heat insulation towards the environment Balanced sleeping temperature. Thermoregulating Climarelle microcapsules store warmth actively and release it when necessary, providing you a balanced sleeping temperature all night long