I actually cannot sleep in a soft squishy bed. I almost prefer a hard one, probably because I grew up in them. Once I got a really nice memory foam mattress and it is like sleeping in a cloud, but I found out that I don't like sleeping in cloud.
(I know it's not really "bedless", but whatever, at least I'm feeling better rested lately)
I can vouch for this. I've recently started sleeping on the floor, and at first my back hurt some, but after a couple of days I got used to it and now it's feeling so much better. I have really poor posture and constantly slouch when I'm sitting in my chair, and so usually have back issues. Sleeping on the floor has worked wonders.
Even when I'm not sleeping on the floor, I prefer firm mattresses, as soft ones are horrible for my back.
The floor would make me numb.
I still prefer to have something underneath me. You're right sleeping directly on the floor sucks. I meant more on the floor with a blanket or some foam or something underneath me as opposed to a soft sinking type bed.
I have an old memory foam mattress that is getting less and less firm. After waking up with a sore back at 3am 2 nights in a row I flipped it over and slept on the bottom, much firmer side. Has been working perfectly for the past week while I wait for my new mattress.
Why do you need a new one if the existing one works "perfectly"?