400 owners - we need advice to replace the stock (dark gray) Froli and mattress pads. Our new 2021 400 has the Mattress Insider 2" topper we bought before delivery and we are both 200+ lb side sleepers. We bottom out in our hips and shoulders, flattening everything including the Froli mat. Our first week long shakedown trip left us both pretty sore.
We are thinking of removing the Froli since it is useless for us, and getting a Full size memory foam mattress close to the same height as the original bed system. That way we can still get to the compartments for battery and Alde maintenance while not being too tall for the Alde vent at the back of the bed. We may put the topper out for sale since there's nothing wrong with it, it just doesn't work for us. Have any of you found a good 6-8" replacement mattress?