Looking for a new mattress for better sleep? NYC’s Dr. Karena Wu, Orthopedic Manual Physical Therapist and owner of ActiveCare Physical Therapy in NYC & Mumbai contributes to this story on the Best Mattress for Every Sleeper. Health.com tested over 50 mattresses to give you better rest. Sleep is an integral part of your health and is the time when restorative and repair processes occur in the system. A good mattress will have you feeling refreshed and rejuvenated in the morning. Dr. Wu and her team at ActiveCare Physical Therapy discuss sleep quality, sleep positions and mattress health with their patients who are complaining of pain. Dr. Wu comments on how firmness can affect your system based on your condition and things to note when purchasing a mattress online.