DMI Best Selling Elevating Leg Rest Cushion Pillow is perfect for those that suffer from back pain, knee pain, varicose veins, phlebitis or restless legs, this cushion helps achieve a more comfortable nights rest. Keeping the legs slightly elevated at night can help to take pressure off the lower back, legs and knees. This supportive foam cushion will help elevate the legs at the proper 30 degree angle. Set the cushion at the foot of the bed and drape your legs over it. The cushion includes a removable blue polyester and cotton machine washable cover.