Over 500 people are waiting for beds in hospitals around the country.
Some 30 patients are on trolleys in Naas General Hospital, according to the INMO.
23 patients are on trolleys in the Emergency Department, while seven are on trolleys elsewhere in the hospital.
534 people are waiting for beds in hospitals around the country this morning.
INMO figures show 380 are in emergency departments, while 154 are in wards.
University Hospital Limerick is the worst affected by overcrowding, with 90 patients on trolleys.
That's followed by 74 at Cork University Hospital.