Almost 10,000 patients went without a bed in Irish hospitals last month.
The Irish Nurses and Midwives Organisation says it's the worst June on record for overcrowding.
In total 9,961 patients went without a bed nationally last month.
The busiest five hospitals were University Hospital Limerick, Cork University Hospital, University Hospital Galway, St Vincent's in Dublin and Sligo University Hospital.
The Irish Nurses and Midwives Organisation started counting the number of patients waiting for beds in 2006 and say this is the worst June on record.
They're calling for mask mandates to be re-introduced in congregated public areas and the return of Covid testing for patients arriving at emergency departments.