Someone else started a thread along similar lines, and I was foolish enough to reply saying we had had similar but thought it was now over...
DD usually sleeps well, goes to bed without much complaint at 7-7.30, self-settles well if she wakes in the night (which she does quite a bit) and she doesn't need any attention in the night unless ill or teething. Our usual issue is early waking but we had begun to make some progress with that recently, so obviously up pops the next issue!
A few times in the last couple of weeks she has woken up SCREAMING (sometimes wordless, sometimes calling out "Mummy"). Mostly this has been in the early hours, and mostly she's been happy to be consoled with a stroke and a kiss and to be told "mummy's here now it's sleep time". I've managed to go back to bed, though it's been about 50:50 whether she's gone back to sleep and a couple of times after a while I've brought her into bed as I've still been awake and can hear her still thrashing around quietly.
Last night, it was 10.30, and she didn't get properly back to sleep until 1.30 - she'd been "asleep" but thrashing for the previous 40 mins. I sat with her until 11.15, not moving a muscle, and she was quiet in her cot and quite content but when I tried to creep out she instantly started up again. I evicted DH and she came in with me, but still didn't fall asleep for another hour and a half.
I don't mind the odd night in with me, but I am not sure of the cause of these wakings, as they have gone from nil to three or four times a week almost instantly. Is this a common phase at 18 months for sleep to suddenly go to pot? I have been thinking bad dream because she is consoled so easily by my presence, but why have they come on so suddenly?
Anyway, if you have had similar, how long did it last for your DC?
THanks!