[factorialboy]

I sit and sleep on solid, hard surfaces.

None of that springy, bouncy, squishy surfaces for me.

My bed is custom build from hard oak wood with a very thin layer of cushioning.

And my main work chair has also a solid wood seating area, with some thin cushioning of the base.

[op00to]

I used to live with a dude that slept on a random 20+ year old slab of raw foam. No sheets, just raw foam on the floor. Wild.

[whartung]

My father was like that. He simply slept on the floor (which, to be fair, was carpeted, so "some" springy, bouncy, squishiness -- but not much).