Night mode is a little more than just "hiding in the dark" is more of a state of mind, a slight phasing out of peoples perceptions and the MD reality. Knowing that all the darkness is actually the same but that there is another type of darkness, when on one sees you, are you not in darkness also? even while you may be perfectly visible at that time you are not.
The trick of staying in the darkness, and therefore not being observed, or vice versa is one that might not be affected by the presence of light, but the knowledge of it. Sometimes what stops us most is our own knowledge.
A discussion about this might be interesting for you.