I guess this is where I'm not sure if I have her A time right. At the moment DD is at 2 hours A time but will often wake around the 60- 70 minute mark. Sometimes she settle herself, sometimes I can settle her back to sleep right away and she'll do at total of 1.5h, other times it can take a few goes to settle her or she won't settle at all so it has me double-guessing what A time might be best?