I love this product. I have lower back problems. I was told to elevate my feet every night at bedtime for twenty minutes to let my muscle relax. I have been using 3 to 4 pillows stacked to do this. The pillows would slide. I now have this great foam pad that keeps my legs where they need to be. It is easy to take on vacation and has a cover to wash when you need to. This product has made my life a lot easier.