AprilFlowers,
I personally don't bring them in and out,
they are super hardy
plants.
*what
zone are you in?*
I'm a 5 here!
I over winter several
plants in pots...
I do however put leaf mould *chopped up leaves
from the lawn mower swept up in my lawn sweeper*
and pack it in between the pots...
I do sprinkle a little on top, but not much.
As this covers them up but leaves them wet...
might be for too long if you just leave them.
I have another gardener gentlemen friend that I visit and he just leaves his pots on top of a plastic covering for lumber with some mulch on top of that and places the pots on top of that.
The best I can say, is experiment...
Hosta's I believe need a dormancy period, so they have to be hit by the frost and all the leaves will turn to mush and they have to go to sleep.
*same for the lilies*
If you feel the cold may be too much, maybe leave them in the container, and leave them outside, but leave them at the base of your house, by a south wall or something, so they are exposed to the winter eliments, but is still protected somewhat by the house.
Weezie