DD just turned seven months and has been a rubbish sleeper since the 4 month regression hit at 3.5 months. In the last week or so her sleep has been steadily getting worse than ever and all of the improvements that we had seen in the last couple of months seem to be slipping away.
She's capable of sleeping a good stretch of up to 3.5 hrs at the start of the night then tends to wake for a feed around 10.30 and it's downhill from there. She'll feed herself to sleep relatively quickly but as soon as I go to put her down she starts writhing around, wakes up and starts crying. I have to put her back on the boob and make a second attempt. When I finally put her down she will usually sleep for exactly 1.25 hrs (very rarely she will string two of those together) but then as the night goes on she gets harder and harder to put down. She often needs 1hr or more on the boob before she can be popped off without immediate protest, she will then do her waking up trick on being put down. Sometimes DD can then settle her but she'll inevitably be awake again within 15 mins and need more settling on the boob. This goes on, with more settling than sleep until I give up and DP takes her circa 6am (at which point she's usually been sleeping on me for at least an hour). Oh and she's also started waking up once or twice in the course of most evenings, which is an old habit we thought we had said goodbye to.
She's breastfed to sleep, which I know is part of the problem, and we are trying to tackle that. But what's really getting me down is that she's got so much worse recently. We had successfully used daylight savings to get her sleeping in her cot til 6 or later - now that's gone out the window. She used to sleep in stretches of 2-3 hrs, occasionally longer. Now they're almost all less than 90 mins. And the waking up as soon as I put her down hasn't been a thing since newborn days.
Does anyone have any ideas of what could be causing this? Could the 8-10 month regression be starting this early? She doesn't seem particularly plagued by separation anxiety in the day, but then it's COVID-times so there aren't many opportunities to tell... She's being treated for thrush (poor thing) but that appears to be getting better while this is getting worse. The most frustrating part is that just a few weeks ago, after her first tooth came through, she had a few nights that were her best since the 4 month regression started, waking just 2-3 times for a feed, so I know she can do it. But then a new bout of teething started and it's been constant downhill from there.
Help?