We left our momma hen in the same place for about two days, that's when she got up off the nest and walked around her little nest box. I'd kept water close up so she could sip from the nest and show the babies too. At that point, we pitched the two remaining eggs and moved her with the babies to a rabbit hutch. The stayed there for about 2 weeks, then we started letting them out of the hutch during the day in the chicken run, with all the other birdies free ranging -- so momma and babies were alone and protected. I think at about 4 weeks we opened the door to the run so momma and babies were free ranging with the others.
At that point, momma would protect the babies just fine. And she suprised us by getting all the babies up on the roosting perch too in time for lights out! We had been tucking them back into the rabbit hutch at night - but after they made it to the perch, we just let them sleep with everyone.
Momma kept them warm enough and safe too. Have fun with your babies, hope it goes smoothly, and don't forget to take pictures! If you think your KIDS grew fast, wait till you see how quickly these little ones sprout up!!