Posted in reply to the question by Lineupandwait: I'd recommend you get your IFR rating first.
The whole point of VFR is that you do not rely on instruments to remain right side up, or to navigate.
Not at all the case by night (note there is no reference to the horizon in the definition of VMC). It's dead common to be night VFR and be unable to maintain the flightpath without reference to instruments (lack of discernable horizon, even on an unlimited vis night). The point of VFR is to allow aeroplanes to "see and avoid", even by night.
On a dark night the pilot must use instruments to control his flightpath, and therefore needs at the very least instrument training, if not (preferably) a rating. Attempting flight in these conditions without the appropriate training would be unwise.
Moreover, the night pilot must both look outside to get his visual cues, and look inside to keep the right side up. Quite a unique skill.