When i was potty training my puppies sleep right next to me in a crate or box..i sleep very light when i have puppies and i would get up a couple of times a night for potty.
I have to be quite truthful and that is that my puppies have hardly any mistakes inside..i do lots of active prevention, by taking them out frequently. And it does not take long for them to get the hang of wanting to go out.
Potty training is all about trying to catch the time they want to go. When they first wake, after food, drink and often when they are awake. We make it happy time and we never scold when mistakes are made. We just ignore and I always blame us the people. I never allow my puppy to have free roam of the house until they have the hang of wanting to go outside.
Some trainers i have worked with say i am too soft on my puppies, but mine are fine, not anxious and well trained........You do get a cold arm from hanging it out with the puppy LOL