1.Material of the suprieure: Le coussin orthopdique pour jambes utilise des taies d'oreiller de qualit suprieure en tissu cationique, doux et doux pour la peau et vous donnent une excellent sensation. Le noyau de l'oreiller pour les personnes dormant sur le côt est en mousse mmoire de forme, qui offre un bon soutien et lasticit, soulage efficacement la fatigue des membres infrieurs et vous offre une exprience de repos agrable 2.ERGONOMIC The ergonomically designed leg cushion can relax the legs to the highest degree. It leaves enough space between the legs to promote blood circulation, relieve bed pain and relieve sciatica. Special butterflyshaped design adapts to the body curve to relieve leg pressure and get a relaxed and peaceful sleep 3.For side sleepers. Suitable leg pillow: ergonomic side sleeper pillow is placed on the thighs, calves and knees to adjust the position of the legs, hips and spine of side sleepers. Orthopaedic knee pillow effectively relieves leg, back and knee pain and ensures a comfortable sleeping environment 4.Easy to clean: The knee pillow for side sleepers comes with a removable, breathable pillowcase, and a smooth zip allows you to easily remove and wash the pillowcase. The hollow design in the middle can improve airflow, and the duvet cover does not produce sweat or moisture. Note: Memory foam is not washable