During sleep, in this position, our legs overlap unevenly, and the hip joints and lumbar vertebrae are displaced slightly forward, thereby stiffening the blood vessels and nerve endings. Putting it between your knees or ankles before going to sleep ensures proper blood circulation in your legs and back. Your body takes the correct position during your sleep and the load on your hip joints is reduced. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.