I co-sleep with my 8 month old and we are now shopping for a new mattress. We've found the perfect mattress but are torn between latex pillow top or no pillow top. I know that no pillow top is safer for co sleeping but I'm already experiencing a lot of shoulder pain from side lying nursing and the pillow top helps to alleviate this. (It is also a latex pillow top so it doesn't sink in as much as other pillow tops). My major dilemma is do I go with the flatter/firmer mattresses, which is technically safer, and be in pain, potentially causing permanent damage to my shoulder and back (especially if I continue co sleeping with my future children)? Or do I take care of my shoulder and back and go with the pillow top? I know my son now will be fine in the pillow top but I worry about newborn babies. Co sleeping has worked so well for us and I'd hate to not be able to do that with the next baby but I'm also really concerned about my body wearing out long before its time. Any thoughts or advice?