Health rule is number one is hard even bed.

Yes, sleep on such bed, as not springs of, light sheets, blanket for a good penetrating air as clothes for, but limiting if you are over cooling. Hard bed is a need for our vertebra's, as in bad posture and bed nerves are squeezing,and vessels too,where are bad for heart, muscles, joints, bones, but organs also needing energy feeding and oxygen, where they are less getting, thus a lie on hard surface your body spreading right loading on your body, vertebra's, muscles are relaxing, vertebra's are not squeezing, blood circulation working an awesome, thus are organs working an ideal , getting oxygen,slags burning, as you are sleep and cure in sleep.
As paralysis organs also affecting of nerves and blood circulation, as for veins,skin, blood circulation rising, as sleep is better, energy is on the morning, burning slags, as you are giving for a cure forces of nature to breath, rising effectively of an own effect. As put on the even base as on the floor, board a warm woolen matrace or two blankets of camel, which layers in two times, and on a top is sheet, bed is ready.