Abstract: A bed for livestock comprises a bladder expandable under internal fluid pressure acting upon at least one flexible supporting sheet defining a supporting area, such that when the bladder is expanded, the supporting sheet assumes a generally convex shape across the supporting area. The bladder may be situated between first and second flexible sheets laminated one above the other, at least one of which is the supporting sheet. A preferred method of using the beds comprising selecting a fluid pressure or fluid volume within the bladder appropriate to a particular animal such that the point loading of that animal's foot, when standing, will press the supporting sheet into frictional contact with a stable base whereas, when the animal lies down, fluid within the bladder will be distributed such that substantially all parts of the animal's body are separated from the base by the fluid within the bladder.