As a side note and FWIW there still is a mattress factory on Oahu. It’s out at Campbell Industrial park and they will make any brand name you want: Simmons, Beauty Rest, all of them. They build them to the factory spec then stick the appropriate label on them. They bring in huge coils of spring wire, batting, giant foam bales, printed fabric, and all the rest, and put them together right there for all the dept. stores. If one is in a hurry for his new bed set he can drive right out there and pick it up hisself.
It’s just way too expensive to ship those bulky finished things by surface ship.
Interesting, thanks.