I started typing a different answer (shown below) but then I looked online and Aria
aren't showing any 2 bedroom suites available for your dates, even at full rack rate. So...
Aria have an offer code whereby you can:
a) get a free upgrade to a regular City View room
b) upgrade to a Corner Suite for $50 night
c) upgrade to a 1 Bedroom Sky Suite for $150 a night.
You can try slipping the front desk clerk something, but your dates are working against you because of the fact that it's a holiday weekend
If I was looking to wheel and deal my way to a 1 bedroom, my strategy would be to offer 50% of retail when I check in. "Is it possible to get a 1 bedroom for an additional $300 for the stay?"
A couple of problems -
1) The 1 bedroom does not show any 2 queens in the online booking system. That's not to say that NONE exist, but...
2) You currently have a City View room. Upgrading to a 1 bedroom, you might get a nice discount, but you might not get a City View room.
All in all, I'd stick with the bird in the hand, and just try to charm the clerk to get a nice high floor.