I personally believe that the Japanese futon mat is the healthiest way to sleep, and after you get used to it even extra-firm mattresses are soupy and uncomfortable. Downside though is that it is very difficult to be comfortable on if you are significantly overweight, and it’s a pretty hard sell for couples unless they are both bought into the idea beforehand.
From my personal experience of sleeping on one for the last decade, not having a bed with a mattress on it is beyond the pale. I have a nice townhome that is well decorated. But when people see my bed, they assume I have a health issue, some kind of homelessness trauma, I’m a weeb (definitely not), or that I’m too poor to own a bed. They assume that they could never be comfortable on it, as a pillowy mattress on a high frame is associated in people’s minds with high luxury, angels with harps, royalty, and sexual intrigue. Sleeping on a mat on the floor is associated with camping, homelessness, destitution, and failure.
To each their own I guess
Everyone already knows this but the mattress industry is absurdly opaque and most reviews are fake