a hard bed
As I mentioned a while back, I have started to sleep on a relatively hard futon mattress on the floor. My reasoning is that as I sleep my inner organs get a massage. Everything gets moved around, rather than being stuck. Everything has to adapt to the surface, versus a soft surface accepting my rigidities and inflexibility.
My lower back hurt for a time, so I started spending 3 minutes a day in the squatting posture used the world over for people live with dirt floors, or who spend a lot of time outside. Actually, that is the posture used in much of the world for crapping. I remember visiting a bathroom in Geneva with running water, but which had two foot pedestals in the middle of a giant basis. You squatted, did your business, then flushed the whole thing down.
In any event, it worked. And it has changed the quality of my sleep for the better. I can't say how, merely that it is different. The night seems more open somehow. I first noticed this sleeping on hotel room floors …
