I've been putting off asking for advice here as I know it's an absolute ridiculous situation we've got ourselves into but I'll just be honest and see if anyone can help....
Since DD was born she has never been a good sleeper. As a baby her routine would be to fall asleep on the sofa then DP would lift her to her cot where she would sleep for maybe 2-3 hours then wake and wouldn't go back into it until she fell asleep in my bed. Again after a few hours she'd be awake but this time she would be wide awake for 2-3 hours and nothing could make her sleep again. She would just stay awake and cry/babble/listen to lullabies for those hours then fall asleep again. As she got older she wouldn't sleep in the cot until we took the side off and pushed it against our bed which meant that she would just roll in beside me in the night. Still didn't sleep through the night.
Fast forward to now and for the past few years it's been various ways of getting her to sleep. It used to be that one of us would do bedtime which meant going to sit with her, stroking her hand, and on occasions me singing lullabies to her! So we removed the hand stroking and put lullabies on the TV instead as she's always needed the light from the TV to sleep anyway. This worked for a while. Then at some stage she'd ask us to hum along (!!) and stupidly we did it as we saw that it helped her fall asleep a lot quicker. In those times she would usually come into my bed at 4/5am, some nights she wouldn't wake so stay in her own bed all night.
School nights were much, much easier. She was tired enough to fall asleep as long as we hummed and sat with her. She'd mostly stay in her own bed and on a very rare occasion she would get up to pee and go back to bed.
And now we get to lockdown last year, everything is up in the air and with no school she's not tired enough at night. The bedtime routine is taking 2, 3, even 4 hours! We got her a trampoline and made sure to take her walks and made sure the garden was all cleaned up for her to play in. But she would usually moan for me to go sit out there while she played on the trampoline. Some days this was fine but some days I just couldn't. On those days she wouldn't play out for long. Sleep was a nightmare, after those long hours of getting her to fall asleep, we'd be no sooner left the room than she would be out asking why we'd left and if she could just please sleep in our bed. Sometimes we'd try to put her back to bed but as ridiculous as it sounds, sometimes it would be 5am and we'd still be sitting insisting that no, she's not coming in with us and she was staying in her own bed. But, tiredness would win and I'd give in and take her in with me.
Now I've made the worst mistake possible by getting her a double bed as with her coming in to us so often, DP would end up on the sofa and his back has paid the price. So I thought getting her a double would mean at the very least there was enough bed space if we did have any of those nights. DD has just seen this as a green light to get to sleep beside one of us and every night has been a battle. She will fall asleep ok (no hand tickling, no humming, just the lullabies playing while we sit there) and doesn't take more than half hour but as soon as we leave the room we are on eggshells waiting to see how long she'll sleep for. Then we get the tears and sobbing and asking can one of us please sleep beside her. She doesn't go back to sleep. She stayed awake all night from 2:30am because we wouldn't allow her into our bed one night.
I know she sounds like a spoilt brat, which I'd agree with on what I wrote here, but in general she's a lovely girl who helps me around the house and cares deeply. She is very attached to me though and cried a lot when school started back up. If I'm a few minutes late collecting her from school or afterschool club (which she hates going to as it means more time away from me) then she cries again and doesn't sleep well at all that night. She won't go to clubs out of school or stay with relatives unless it's her gran. She plays out with friends for hours if she can but during lockdown she's happy playing with toys at home.
We are at a loss now of what to do. Reward charts don't work at the minute as there's nothing exciting to reward her with so she has no interest. She has shown though that she absolutely can stay in her bed all night when DP had a really sore back and needed injections she knew he needed to sleep in bed so didn't come into us at all for a few days but once he seemed better she was back to square one.
DP thinks she's just such an anxious child that she needs one of us at night and that we should just get the sleep wherever we can whether that means one of us in her bed/her in our bed etc. Then other times he's losing patience at the whole having to sit with her til she sleeps only for her to be up less than an hour later and one of us having to go to bed just so she'll sleep. I'm swinging from wanting to try some sort of strict routine with her and saying why bother when she's not in school and we can try again once things are back to normal.
And as you can see from my ramblings, I'm sleep deprived, fed up and always seem to have a headache these days as the sleep situation is out of control.