I would think after major surgery like this they would keep them over-night too, but nope.
I've been checking on her, still mostly "out of it" from the drugs. Still keeping in carrier cage now since first couple times she was sleeping and could barely stay awake. Last time she did come too a little more and yawned with a very dry sticky mouth, so tried to take her out and show her water but she clung to the towel like scared so put her back in. Wet my fingers and put up to mouth, but didn't lick em or anything so maybe she's ok for now.
Left the cage door open this time w/water right outside, so next time will see if she ventured out or still hanging out inside.