My 2.8 year old has been a bloody nightmare at bedtime for the last 4-5 months. Shouting, wailing, crying, banging, generally being hellish after lights out. It lasts 30-60 minutes and I bloody dread bedtime at the moment because of it. I've tried various things - longer/shorter/earlier/no nap - nothing helps consistently. A reward chart helped a bit for a week or so but not any more. She has a fairly solid routine of shower, PJs on, milk and stories on the sofa, teeth, upstairs and a final story and lullaby and cuddle in bed then lights out. She's gone to sleep by herself for two years or so. When she's shouting we ignore for a minute or two then will go in, be boring, lie her down, quick kiss and retreat. We only go in if she's getting very upset - low-level whining gets ignored.
She has had a new sibling but this started before baby arrived and seems to have gone on too long to be related to that..?
Would be great to hear what similar age children are doing to see if it gives us anything else to try. DH and I are getting increasingly stressed about it.