Size: 13.4 x 9.6 x 5.5/3 in / 34 x 24.5 x 14/7.5 cm A Knee Pillow Separates Both Thighs and Knees – The knee pillow is longer so that it can support both thighs and knees, absorbing your knees’ pressure and providing you with a good sleep. Deeper Semicircle Round Shape – The pillow is designed with a deeper semicircle round shape, which can embrace your thighs better while sleeping. The knee part of the leg pillow is wider than ordinary knee pillow for side sleepers to support your bending lower leg when sleeping on side. Help Relieve Back, Hip, Knee & Sciatica Nerve Pain – Whiling sleeping on the side, our pelvis is tilted and the lumbar spine is twisted. Body pressure is also focused on one side. This sleeping position may cause muscle tension, adding discomfort to your back, hip, knee & sciatica nerve. This leg pillows for sleeping are great for those who looking for relief. The pillows for side sleepers provide proper sleeping alignment to keep your pelvis neutral, so that you can have a good sleep. Sleep Comfortably & Move Freely in Different Positions – With our humanized pillows for side sleepers, the probability of the knee collision will be greatly reduced and you can toss and roll on the bed and sleep easily with a position you like.