Did the cebu-transcentral-balamban-toledo-naga-talisay-cebu loop at night with just me riding solo.
All I can say is you need lights, lights and more lights. There will be close to no streetlights on the provincial highways and there are numerous 'obstacles' on the road which can't be seen at night. (hidden rocks, sand,
ninja dogs). So speed is a lot slower on the night rides and your road attention should be a lot higher.
In my opinion the best time to ride is at dawn. 5-6am. No traffic and there is already ample light. Plus, at this time you are still fresh with no fatigue yet. (assuming wala ka nag night out :P )