Dr. Karena Wu, owner of ActiveCare Physical Therapy in NYC and Mumbai contributes to this story on Health.com: Sleep Away Aches With the Best Mattress Toppers for Back Pain. As a manual physical therapist and instructor with the Maitland Australian Physiotherapy Seminars (MAPS), Dr. Wu and her team at ActiveCare Physical Therapy specializes in spine and joint mobilizations for musculoskeletal conditions. A large majority of clients come in for neck and back pain and an important discussion regarding mattresses is always part of the evaluation. A mattress topper can extend the life of a mattress or change up the mattress feel. A mattress topper can be made of different materials and can provide extra support and comfort for your joints. Dr. Wu contributes to this story on the 8 best mattress toppers for back pain.