Does someone have a good advice on getting a mattress in US bypassing the whole mattress-sale industry that sells a piece of memory foam wrapped in their advertising budget and “long sales cycle”?
I simply ordered a foam mattress from a foam mattress company.
Saved me all the hassle of figuring out what type of foam and cover etc. still only ten percent of the price of a fancy mattress from a mattress store and took ten minutes on amazon. I doubt it's that much more expensively than a comparable block of foam. (I think it has multiple layers, as well).
You can get a slab of latex from foamoarder, which is how I got my mattress core. Honestly that alone would make a solid mattress on its own, although you'd still want an encasement I imagine.
If you want something more specific, check out the mattress underground forums. Very helpful users there.
Ordering a slab of foam from a foam factory, etc?