Great product
"This item was bought as a gift for my daughter who suffers with constant back problems and joint pains. She found the mattress to be soothing and relaxing. It vibrates and has 3 rows of vibration points at the upper back, lower back and calves. You can control the intensity and there are several pre-programmed options that alternate across the 3 vibration sections or you can focus on a specific area. It's good for circulation and to ease tired muscles. The mattress was a very good price, will recommend to others."