The figure is up eight on yesterday's number.
12 patients were on trolleys in Naas General Hospital today, according to the INMO trolley watch figures.
It is up eight on yesterday's figure, which stood at four.
There were 396 patients waiting on a bed at hospitals around the country this morning.
The INMO's latest Trolleywatch has found 333 patients were waiting in emergency departments, while 63 were in wards elsewhere in the hospital.
Cork University Hospital had the highest number of patients on trolleys with 49 people waiting on a bed.
That was followed by 41 patients at University Hospital Limerick and 40 at University Hospital Galway.

Anger As Tents And Rubbish Left Among Graves At Historic Grey Abbey Cemetery In Kildare Town
Gardaí Renew Witness Appeal After Fatal Collision Outside Kildare Town
Kildare Students Showcase Projects At Young Scientist And Technology Exhibition
Animals And Heritage At Risk As Alleged Illegal Hunting Leaves Scars On The Curragh
Homeowner Threatened With Blade During Newbridge Break-In
Serious Reliability Issues Highlighted In Data On W6 And X31 Bus Services
Three Males Ransack Athy Home And Steal Shotguns
Driving Test Delays Loom as RSA Testers Back Strike Action