does the firmness of your bed matter for anything other than comfort?
i dunno, but every couple of weeks i find myself wanting to sleep on the hard floorand when i wake up i always feel awesome
i prefer harder ones
super soft ones are said to be no good for the spine
Without a firm mattress it is impossible to build muscle.
Harder ones are better for the spine. My bed is megafirm, but even I occasionally do what>>119587does.