I believe you are thinking of Hindu holy men, who do things like that to show mastery over their own bodies. They live in India.
They don't sleep.
Peter garret: Midnight oil, How do you sleep while the beds are burning
no they sleep in beds too
The beds were reclining seats to sleep in.
Labs sleep in beds or outside i think
They sleep in beds. Or on the sofa if it was a late night.
Water beds are not safe for infants or young children to sleep in. Children and infants can die sleeping on water beds. They can get smothered and suffocate.
beds
In their beds.
how they look
They sleep
slept on cots,beds,and haystacks