That's ridiculous that you were down voted. My brother slept on a rock hard bed as a kid and is able to sleep on the floor, without a pillow, all night no problem. The soft bed thing is more of a cultural issue than a biological necessity.
Anyone who has ever been to bootcamp can tell you that it really doesn't matter where you sleep if you're REALLY tired. I would sleep on the ground if they let me. I would fall asleep sitting down, then stand up and fall asleep again. And when I did finally go back to my tent to sleep on my 50 year old army bed in a used sleeping bag, it was the best sleep I ever had.
