Our 2019 Ocean just came with the shelf topper which my husband, sleeping downstairs, thought was ‘bearable’ but not great.I guess with the seats down it was at least level. We purchased the VW Comfort mattress (which now makes the shelf topper redundant) and he has a great comfortable sleep on it. I’m surprised that so many on the forum find it inadequate and need to supplement it with additional ‘toppers’. I guess it’s very subjective as are home bed mattresses. Having said that I haven’t slept downstairs yet, but find the upstairs mattress more than adequate too. Our black lab seems to find downstairs also pretty comfy.