Here is a back stretching mat that can help relieve your back
pain. The HoMedics Body Flex Mat features 6 stretching programs (Twist, Flow, Energize, Stretch, Unwind, and Recover) and 3 intensity levels. It has a removable pillow, which supports your neck and spine.
The HoMedics Body Flex Mat uses soothing heat to relax your back. It has handles that let you easily move it around. This mat measures 42 x 20.5″. You can find out more about it here.