1. Yes, my diapers last all through the night. I have only needed to get up and change a couple of times. Every time it was because I was using a cheap diaper without enough capacity.
2. My regular overnight diaper is BetterDry or Crinklz. I have tried many other brands for overnight use, but most have some sort of leak issue. The next best brands I remember not having too many leak issues are ABU Space and Megamax.
3. I put on my diaper right before bed, no more than 20 minutes prior. In that 20 minutes, I usually wet a little.
4. I get about 7 hours sleep on worknights and 8-9 on weekends.
5. Big no on boosters. Every time I use one, I leak.
6. I am a medium to heavy wetter at night. My diaper is usually at 2/3 capacity when I wake up. On non work days, I'll keep it on for another hour or two, but that usually results in a press-out leak.
7. I wear terry cloth pants and a PUL cover over my diapers, just in case. Any leakage from the diaper is contained in the pants and the PUL cover keeps the bed dry. I have probably leaked through everything less than 10 times since I started using that combo 10 years ago.