Sorry for the slow reply - I have been having a bad work week
.
A bad night can lead to a bad day at this sort of age if they have lost lots of sleep. I never really worked out how to 'fix' it though as J's cues were too unreliable anyway so would usually just do the same A as normal and hope for the best or I would put him down 15 mins early. That is still pretty much what I do now as well
.
And you will get random bad nights at this age as well - actually you will get them through until 18 mths ish. Teething is just dreadful for some LO's.
Hope last night and today were a little better