Barnardos says that half of the children accessing their services in Dublin this year are living in emergency accommodation.
To help them, and many others around the country, the charity are today launching their Christmas appeal.
So far this year, they've helped over 15 thousand children, and they expect that number to increase in the run up to Christmas.
Director of Fundraising at Barnardos, Mary Gamble, says working with children in emergency accommodation is becoming more and more common.