DD is 15 months. Historically we held her to sleep but we sleep-trained at 12ish months and she's been great since. Goes to sleep first or second attempt and sleeps well.
But in the last week she cries blue murder when we put her down and it can take 30-60 mins for her to fall asleep. Noises range from happy babbling, to whinging to full on screaming. At which point we go in and calm her down.
It could be teething - but I can't feel any new teeth. It could be inconsistency as dd is put to bed by me, dh or my mum.
I'm sure dd is tired and not overtired. But still she just won't sleep easily.
Any idea what's going in? TIA