Cork University Hospital is the most overcrowded hospital in the country.
65 patients are being treated on trolleys at CUH, while 15 people are on trolleys at the Mercy University Hospital according to the INMO's trolley watch figures.
81% of patients on trolleys at hospitals around the country are waiting in Emergency Departments.
University Hospital Limerick has 52 on trolleys followed by Sligo University Hospital with 44.