I sleep as a Roman...
No mattress is good for me if not with 6 inches inclination ...
As a speakers system must be under controls for the ears, a bed must be under control for the body metabolism...
Roman and Egyptian know how to build better and how to design a bed...
Even acoustic was advanced not primitive ...
I forgot to say that i paid peanuts for my mattress...
Embeddings controls so to speak is the key here too not the price tag...😉
😊