sheltin Memory Foam Knee Pillow for Sciatica Relief,Leg Pain,Back Pain,Pregnancy,Hip and Joint Pain - Leg Positioner Pillows Wedge Contour KNEE PILLOW: Best ergonomic memory foam knee pillow for sleeping. Conforms to your legs instantly and helps promote spinal alignment INSTANT RELEIF: Relieves back, hip, knee, and ankle pain when used the proper way. Simply place between your thighs or below your knees to help with your specific pain WEDGE PILLOW - Fits comfortably between your knees. The leg pillows cover can be removed for easy washing. MATERNITY PILLOW - Also helps provide a restful nights sleep for expecting mothers, without the bulkiness of other wrap pillows. 100% SATISFACTION GUARANTEE: Our cushions are of superior quality. If you are not satisfied, then send your cushion back for a refund