Which measurements are which? is it 4 feet long x 4 feet tall x 2 feet wide?
That is an extremely large cage for a Ball Python. The largest I would recommend is a 4 x 2 x 1 (L x W x H) and that is only for full grown adults.
Keep in mind that a hiding ball python is a happy ball python. They aren't very active snakes especially not during the day.
How are you heating this cage/maintaining humidity in this monster of a cage?
Ball Pythons are terrestrial (ground dwelling) snakes, multi-level cages don't really make sense for them.