Hilton is running a promotion for bookings made and completed by 31 December 2018 which offers 2,000 bonus points per night (capped at a maximum of 8,000 points per stay) at participating Waldorf Astoria Hotels & Resorts or Conrad Hotels & Resorts.
This seems to be a targeted promotion and registration is required, but I was able to sign up my account without any problems. Moreover, you need to use the rate code PBK2P1 when you book your stay, so Iโd feel pretty safe about the additional points posting even if you werenโt targeted.
Simply go to the Conrad website and enter the code under the Promotion/Offer Code field:
Click search and youโll see that the PBK2P1 rate reflected below. The rate is generally cancelable up to 24 hours before check-in.

I have to say though, based on the rates Iโm seeing, that if youโre going to stay at a Conrad you might better off with the Compliments of Conrad rate that gets you a US$50 equivalent hotel credit each night. A Hilton point is just under 0.5 US cents of value, so between US$10 and US$50 of value I know which one Iโd take.
That said, I wasnโt able to get the Compliments of Conrad rate to appear at all Conrad properties, so there may still be situations where the 2,000 bonus points per night come in useful. Also, if youโre staying at a Waldorf Astoria property this is another option to pick up some additional bonus points on your stay.