I have a sugar glider room.  the cage isnt even put together completely anymore.  I made a 20 gallon tote into a sleeping house.  5 of them come out at night and run the room. (made glider safe) and one female, no. 6, stays in the cage, she wont generally leave the cage.  at night I can find them sleeping or hanging out in different parts of the room, running on the wheels.   once the sun comes up I can find all 6 sleeping in the tote when I take out the old food and do my glider check.