Yeat Body Pillows / Dakimakura are designed to be a substitute for the person you love! When you think about the most important things in your life, sleep may be one of the first things to come to mind. Science has shown that when you’re asleep, your body releases hormones that help repair and rejuvenate certain parts of your body. As we age, the quality and quantity of the hours we spend asleep gradually decreases. That’s why it’s important to get enough rest on a daily basis.