The poll into energy use also revealed that eight out of ten families are rationing warmth in their homes.
Of those surveyed, nine out of ten are wearing extra clothes instead of turning on the heating, while 56% turn it off altogether when children are not in the home.
Energy Bill campaigners today called on the Government to drive down energy bills.
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Sunday will be largely dry with some bright spells of sunshine after any mist or fog lifts and clears.
British Bankers' Association head Anthony Browne warned that some banks could be moving abroad within weeks due to Brexit uncertainty.
Labour said its plan would mean grieving families would not have to pay for either a burial plot or cremation for a child aged under 16.