It would seem no, but that's program T&Cs talking.
At HiltonŽ, ConradŽ Hotels & Resorts and DoubletreeŽ, choose from:
A space-available room upgrade, including breakfast.**
You will be upgraded to an Executive Floor room (where/when available) at time of check-in. If an Executive Floor room is unavailable, you will be upgraded to the next best available room from the room type booked. Upgrades exclude suites, villas and specialty accommodations. At hotels with Executive Floor lounges, if an Executive Floor room upgrade is available, you will also receive access to the lounge. In addition, you will receive complimentary Continental breakfast for you and up to one additional registered hotel guest each day of your stay.