Looking for recommendations as to where one can buy a super king bed?

Thanks to those for their recommendations on rugs which have already proved most helpful and we've managed to purchase some today from Branded who are sourcing some others for us.  If anyone can recommend places within an hour's drive to buy a large super king bed, I'd be most grateful.  We're trying to find a 2m x 2m super king bed and most places (Ikea, Carrefour, etc.) only seem to do up to 1.8m x 2m.  Many thanks.