Having one side of the MySide mattress soft and the other medium enables my wife and I to have our own preference for comfort. Compared to the fully soft mattress we had before, we both now sleep without discomfort. We also decided to buy the adjustable base and that was equally as good a decision as the MySide mattress. It is fantastic for sitting up and reading in bed or working the computer, and the zero gravity position is brilliant after a tiring day of activity. We highly recommend the combination of MySide mattress (in the options that suit you) in tandem with the IAdjust Base. You won’t be disappointed!