Y’all I’m losing my mind. My 11 month hasn’t slept through the night since she was 6 months old. She started sleeping through the night at about 8 weeks. She has a solid routine, always has. But one day she decided that she was going to either wake up every 20-30 minutes through the night or just stay up for hours on end. No matter what I do. She now only takes one nap. I can’t make her nap no more no less, but I make sure to lay her down at the same time every day. She eats three meals on top of bottles. She’s not waking up for bottles, I’ve tried that, and it’s not it. She wakes up screaming until I come in the room. Then I cannot leave the room because she’ll scream even louder. But if I stay in the room it suddenly turns into play time and she wants to jump in her bed and throw her binky across her room. I’ve tried laying next to her on the floor. That doesn’t work. She’ll stare at me for hours. My other two children never did this, not even close. She’s had rain/white noise playing in her room since day 1. I really just don’t understand and I’m losing it. I’ve tried changing her nap around, putting her to bed earlier and later, and nothing!!
She’s manipulating you and it’ll only get worse. Let her scream and scream back at her. She’s in your world you’re not in hers. Tell her to shut it up and stop allowing the behavior it’ll get worse. Babies only behave the way we allow. Make her crazy don’t let her make you crazy. Get close to her ear and tell her to hush and try turning on a lullaby my baby enjoyed them.
When I transitioned my boy into his cot from sleepbyme, he didn’t settle. I went back in, gave him a cuddle then put him back down and left him. He cried for around 10min then went to sleep. Same again next night, but cried for around 20min. I felt awful but stuck it out. He lied down and went to sleep. 3rd night, he drank his milk, put his Diddy in and went to sleep… has done everyday since. Now 16m, he was around 6month when I transitioned him. I’ve got it all over again next week when he transitions to his big bed 
Hope you find a solution!
Not super helpful, but just here to say youre not alone. She’s not even a year old, that’s just how some kids are. I’ve got 4 kids, 2 are incredible sleepers, two sound very similar to your girl, all were raised in the same house with the same routine 
Just keep doing what you’re doing and she will grow out of it eventually.
I hate to say it, but I’m 47 and never have I slept through the night. I stopped waking my mom up at 3. That said, she doesn’t need to sleep. Don’t phrase it that way, as it’s not working. This is quiet time and these are what we can do during quiet time. Then give her age appropriate things to do in her crib/bed. Can she have a baby book? A mobile? A quiet toy? A bottle with water? She is likely a child who doesn’t need as much sleep as most. That doesn’t mean you need to be up with her. Make her room safe (furniture bolted to walls so it doesn’t tip over. No cords on blinds, etc.) And dark. And let her figure it out. Do you have a baby monitor with 2-way speakers so you can talk to her and reassure her you are there, but it is mommy’s bedtime and mommy is sleeping until ___ time. They make clocks that show red and green, red for times to be sleeping and green for wake up. Maybe having that visual will help as well. Good luck.
It’s biologically normal for them to wake through the night. My almost two year old was waking 6-8 times a night u til 16 months old when she finally slept through the night.
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Kids switch up their sleep it’s normal. You mow juat get to be exhusted
I wish I had better advise for you. Our oldest didn’t sleep through the night until he was five. Part of it was wanting to be near us & the other major part for him is he required a snack in the middle of the night (he was always 150%-200% on height/weight since being born). The only way we survived was moving him to a playpen (which at 1 yo he could easily climb out of being so tall). Then on floor next to it we put a twin mattress. He would sleep better with us in there. We gave him a sippy with water & then he would have a snack around 2am & return to the playpen. We rotated out & never moved the playpen to our bedroom as at least 1 of us should be getting some sleep. Plus I didn’t want to ruin potential “alone” time or as we called in back in the day “red light, green light” as you would get stopped every single time LOL. Then our youngest came along sleeping his whole life away (we had to set alarms to wake him for feedings/changing)…I didn’t think I would get that lucky twice in a row so we stopped there. Good luck mama!
My youngest is 7 and has never slept thru the night , her dr just said some kids aren’t good sleepers. I’ve learned to go on hardly any sleep lol
Talk to her pediatrician explain the situation asking if it could be night terrors. If it could be there is medicine for them to prescribe. It makes a world of difference. They sleep and wake up in the morning refreshed. It’s worth try. Good luck, you both need more sleep.
This way my daughter and it started around 6-7 months unfortunately it didn’t end until she was 4 and went to pre k and even then some nights she was still up now she’s 5 in kindergarten and we haven’t had an issue yet although she’s up at 6:50am and lays down with her tablet at 7:30p.m and everything goes off by 8:30 but she gets no naps anymore so I’m sure that has helped! Hugs it’ll end eventually💜
My son just turned a year old, still doesn’t sleep through the night. Only difference is we have been doing this since 8 weeks old. I have even moved him into our bed and it helped some but still have yet to make it through a night. He just hates sleep.
My kid didn’t sleep through the night till she was 2.
I can’t recommend chiro enough, my lo was only sleeping 4-5 hours at a time, we had chiro 2 days ago and now he’s sleeping 8+ hours
Ell Clark and cause trauma, babies don’t manipulate they just voice their needs
My first 3 are awesome sleepers since 8 weeks old
My 4th is 13months old still wakes multiple times during the night
My 5th is 3 months old and even sleeps through the night 
I’d get the babyba chiropractic adjustment. Find a good child Chiropractor, let them know what’s going on.
My son did that after he used to sleep all night long around that age too. Then an older coworker told me “why don’t you let him cry it out”. I was thinking at the time that I could never do that! But one night I was so tired I shut my door, and he cried himself back to sleep. It was maybe a total of 2 mins he cried, and he hasn’t woke up in the middle of the night since. I know people say it’s mean, but it only took maybe 2 mins at the most for him to realize I’m not coming in.
Let her stay in her room alone. She is learning to have what she wants
Let her play, check on her and go back to your room. She will get tired.
I have one that has put himself to bed every night like clockwork and one that we gave up even trying to give her a sleep schedule. All kids are different.
Stop her nap. Try her last meal within 90 mins of bed time. Keep in mind, she’s been teething. That messes with sleep. Around ages 2, 6 and 12 it happens again as molars come in. 
My 9th month old almost 10 months will wake up around 12:30am… 1:30… 4… that’s when she was around 6months she still does wake up like this morning she did around 12:30am fortunately she will go back to sleep- I’ll put teething medicine on her gums because you never know it could be that. I would talk to your pediatrician to see any other ways that could help! Good luck!
Mine is 15 years old… still doesn’t 