Hey Anna, great info there.
Do you mean when you say "I never bothered with the re-settle idea. Once bub can self settle, you will find they will learn to resettle too (meaning when they're awake, just get them up and worry about the next sleep after the next feed etc).", that if they learn how to go off to sleep at the begining by themselves, then that will lead to them sleeping longer? We are using a hammock now and it gets him off to sleep, but I have to jiggle it for 20 mins to get him sleeping into that 2nd cycle.