Buis Mattress - Holland, MI.
https://buismattress.net/
We drove from the far other side of the state to visit and lay on their mattresses before buying. At least 4 hours and probably closer to 6. THAT is how much we had a problem finding a mattress that would work for us.
Pretty sure they do "all" their manufacturing at that location and a lot of it is done by hand, the old fashioned way.
We LOVE our mattress and have tried every name brand there is - returned every single one of them and finally found our best fit with the Buis.
This is one of those companies that seems like it's been around for a hundred years or so..their showroom is nothing fancy and DEFINITELY mom and pop feel to the whole company. No idea how long they've been in business but hope they are always around as we'd buy our next one from them in a heartbeat..
They don't seem to discount much - probably because they know they have a unique product that is fairly priced. Not like you can buy the same mattress at another store, and they know it - so..we paid pretty much full retail but it's worth every penny.
Forget what we paid but it was reasonable especially for as long as we've now had it. Hasn't shown "any" signs of wear and we're probably going on at least 6-7 years at this point. Just rotate and flip it like the old mattresses and it's doing fine.
Love that we have "real" box springs also, not the junk the big name brands are doing (basically plywood boxes with no springs). AND, real coil innersprings. Very nice mattress..
Good luck!