smart thinking.
the same thing happened to us a few years ago. we put mattresses in the livingroom, every blanket and even the pets were in there with us. we have a small kerosene heater for emergencies that came in very handy. cooked using the grill through the back window. got fresh water by melting ice...
during this, the tree in front of the house came towards our front door

had to go hang from it while jumping up and down to get a few inches of ice off of tree. had to keep the tree from crashing through the front door.
there was like 6 inches of ice on the trees. trees fell into homes, onto cars and blocked roads. 90,000 people without power for 5 days. it was crazy