Good advice in the earlier posts.

I use Bookings.com or Agooda as I have become a premium member and get most discount offered. Basically these sites get few rooms from each hotel. Once these are gone they the rates go up. So you have to watch out. Sometimes its better to book direct with the hotel. You can set filters that will make it easy to choose hotels as this will only show the criteria you want. I also use the map function as it gives overall view of hotels in an area you want to stay and compare the rates. I also have account with Meriton. They have upmarket apartments. It pays to book in advance and you can get a good deal. I stayed in Mertion near the airport for $145 last year, met a SB in the evening and had an early morning flight to catch next day. So this worked out well. If you become a member and sign up you get either 5 or 10% discount on the advertised rates. Looking at the rates the Mertin in Bondi in May is from $140 to $240 depending on the day of the week.


By expereince for Sydney hotels is mid week they are cheapest. Weekends including Fridays the prices could be double. It could be worth checking few different days in the week.