I think they will be fine. I had moved my flytraps and a cup of sarrs inside a while back, but decided it wasn't a good environment for them to be dormant in (especially after a mouse decided to prune a few of the smaller traps.
So, I moved them outside and they've been fine...even got two or three inches of rain on them recently. I don't have them in a tray so they drain on through. Temperatures have fallen to the low-30Fs here...hasn't froze, though, since I took them back outside. They seem to be doing good...not growing, still green, and the traps are kind of laying flat against the ground. Like I said, I think your plants will be fine. Btw, you don't have any sundews?