WAY too soft and I like a soft to medium mattress but I sink into this one and you almost have to sit up to turn or support yourself up with your elbow.  I had to use pillows behind my back to give my back more support because I sunk into this bed too much (and that’s me sleeping on my side) I can’t even imagine being a back sleeper because what’s the sense of getting a new mattress if you have to support your body with pillows￼.
It’s definitely going back