There are plenty of B&B's on Westren Road - same road as the River Lee Hotel. Also, the Maldron hotel is across the river from the Mercy - bit of alonger walk or 5mins by taxi. it's not so much the lack of parking spaces around the Mercy but the wardens are very active in this area. parking early in the morning is ok (you might be unlucky and end up a slight distance from the hospital) but be sure you renew you parking discs on time. Parking discs are €2 each, available from most shops, and I'm sure the time limit around the Mercy is 2 hrs per disc. If you google B&B Westren Road Cork it will bring up all the B&B's there.