Lodging recommendation for one night in Trim?

I can tell you a hotel NOT to use: Castle Arch Hotel. The walls are paper thin. We listened to the German couple in the room next to us argue all night long. I might have been amused if I could speak some German...

Thank you for letting me know :)

I booked a night at Knightsbrook Guesthouse (also called B and B) on Halloween. It has good reviews on Booking. Sorry, but this reply may be too late for you.