Our daughter turns 4 later this month and she has only ever slept through the night once (maybe twice) since she was born 
Does anyone have any tips?
She has her own room with a bed she chose with a tent over it and all her teddies and comforts.
She has a night lights left on.
She just won't stay asleep for longer than 3-4 hours without waking. And that's if we're lucky. Often she wakes every hour until 2am 
If we let her sleep in our bed or on a put up bed in our room she will sleep slightly better but not much and she can't sleep in our bed permanently because it's giving me really bad backache sharing with a starfishing 4 year old.
I thought starting nursery would help tire her out but it hasn't made any difference. Neither does trying to tire her out on walks or letting her go to bed later.
I just want to sleep 