I think we are in a bit of a crisis as a family over sleep. We have a DD1 - 3y8mo and a DD2 - 11mo.
A couple of weeks ago, DD1 suddenly started having huge tantrums out of nowhere - running away, throwing things, trying to hit her sister, trying to run up and down stairs. We thought this was the threenager phase kicking in. It has coincided with real resistance at bedtime - she is totally fine in the run up to bedtime, will put pjs on, brush teeth, listen to multiple stories. But then as soon as DH or i go to leave, it's like a switch is flicked and she starts removing clothes, running away, slamming doors, flicking lights on and off. We've tried to go back to basics with sleep routine, give her choices, let her not wear pjs / sleep with weird hard toys if she wants to. But nothing works and bedtime is taking 2hrs +. She has a super active imagination kicking in - lots of talk of pirates and monsters so got her a nighlight and I said I would stay in her room until she went to sleep, but that also doesn't seem to have changed anything. I've given her lots of 1:1 time with me as well in case it was that.
I've bought a stairgate to go on her door which is arriving tomorrow so at least we know she is safe in her room as at the minute we can't even leave her to it and to settle herself into bed when shes ready. She was never like this as a baby / toddler - she's slept through since around 9months in her own cot and room. We took the side off her cot just after Christmas, which also hasn't helped.
Nursery say her behaviour is absolutely fine there.
Whoever isn't doing bedtime with DD1, is then with DD2. DD2 cosleeps with me (not through choice - as a result of refusing every attempt at getting her in a cot to the point that she made herself sick) and hasn't slept through the night since she was 5months ish. I usually go to bed at 7.30pm with her - DH brings my food upstairs for me to eat then goes back downstairs. I spend my evenings sat in the dark scrolling on my phone or watching tv with the subtitles off and white noise playing. If i leave her / the room, she wakes and won't resettle for anyone except me despite DH and my lovely DM coming to try and help (even though she is 250miles away).
I'm sure it's no coincidence that this has happened since I went back to work. DD1 hasnt napped during the week since she was 3yo and is now also dropping the weekend nap as well. But I feel like it's killing our marriage as well as our mental health / diet / patience. Typing it all out has made me realise how ridiculous the whole situation is but I don't know how to fix it. Should I pay for a sleep consultant? There are other things I'd rather spend £500 on, but if it is a magic solution, then I'm willing to do it i think! Is there something obvious I've missed that I should be trying?