Our Emma mattresses are mostly categorised as medium firmness. However, industry testing and customer reviews have made it clear that our Emma original is a slightly softer model in comparison to the Emma premium.  As the Emma Premium is a slightly firmer model, this offers more natural spinal alignment for the user as it has better zoning, making it ideal for people who struggle with back pain.  However, if you do struggle with joint pain, maybe Emma original softer feel could be more beneficial for you.  On a scale of 1-10, with 1 being very soft and 10 being very firm, we rate the Original as 5 (soft-medium) and the premium at 6.5 (firm-medium).