The mountain top accelerated by 9,81 m/s2, so everything stayed neatly in it's place. One wonders how the air wouldn't be brushed off the sides, but there was a near Sovjet-era Gulag fence that kept it in.
The inhabitants were sitting on the bed, neatly swinging their feet over the rocky pellets of a rivulet, going nowhere soon, as 9,81 m/s2 might be considerable, but distances between heavenly bodies are enormous, and that's if you are in the right trajectory.
That sounded probable, but I dropped physics in secondary school, so I am sure I have no idea what I'm talking about.
The mountain top with the bed on it, however, rushed upward? forward? Galactic Northward?
Down Big-Bang-Theory-Zero-Point-Energy-sub-quark-fluctuation?
The bed stood still a little while more. Folks were filling their mouths in the mountain stream while still laying on the beds with their bodies. The bed creaked.