What I want to know is should I let the bees rest overnight, giving them 24 hours before I transfer the frames to the hive?
I am no expert here, but I don't think that it makes much difference when you transfer them, as long as you transfer them soon into thier own home. Those nuc boxes can get pretty crowded with bees if the conditions are right ideal and you just happen to be a bit on the extreme lazy [said with tongue firmly planted in my cheek] side.

[thinking on a time line of a few weeks instead of 24 hours]

I would probably transfer them in the late evening, and set the nuc on top of the hive, and then next morning, bright and early, remove it from the area.
Now, that's what a beginner would do...If someone with more experience has a better idea, please speak up. I am all ears...
