Yikes. I wouldn't put the majority of parents in Temple Bar. It is a party central cesspit of vomit, piss and drunks between the ages of 18 and 35. And at the time of the year it'll be worse.
Avalon House is maybe a 10 minute walk from Temple Bar and on Amoma.com is charging EUR52 a night. A bargain but it may not be on offer at the price for long. You can check out Bewley's at Ballsbridge on the same site at EUR65 a night. It is a distance from Temple Bar but again, IMO a better option even if it is a tenner or so for a cab from Temple Bar to there. However, if you insist on Temple Bar then Oliver St John Gogarty's at EUR70 a night with ensuite is a good deal, believe it or not.
If none of this helps then hit up hotelscombined.com or trivago.com which I have always found to be good for getting value.