My petunias are growing and blooming like mad, (in pots,) but the low temperatures have sent them into “suspended animation.” Will they survive if I bring them in?

I doubt they will thrive without full sun. But have never tried.

Petunias are perennials and I have tried bringing them in. They haven't survived but I think I brought them in too late. So, if you are going to try, do it sooner rather than later.

I have never brought in petunias into my home during the fall/winter. But they might not do so well, according to my past experiences with plants I brought in. Eventually they will just turn weak and die out. Even if you have a (plant lamp) over them, the plant lamp isn't strong enough to keep it strong or alive that well. It needs sunlight. I don't know if a window will help either. You can try it.