The Comfort and Health Benefits of Using Pillows Under the Knees Putting cushions beneath the knees may improve comfort, health, and well-being. This technique enhances spine alignment, lower back discomfort, circulation, and sleep. Pillows beneath the knees are a handy and portable way to relieve discomfort, relax, or promote sleep. https://www.otherarticles.com/home-improvement/interior-design/254716-the-comfort-and-health-benefits-of-using-pillows-under-the-knees.html