Dd hasn't really had a bedtime, I spent the first few months trying to do the 7-7 thing, not because I had to be up early or anything, but because that's what all the mums who had everything together we're doing. (I know it was a stupid reason but I felt like a total failure at the time and copying the good mums made total sense in my pnd head at the time)
It was stressful as dd just wasn't tired. She'd be awake in her cot for hours and I felt awful leaving her there so I'd end up sitting in there too. She wasn't screaming or distressed etc but just not tired. She'd wake at 4/5 regardless so again I or dh would be up. Plus starting the bedtime routine at 6 meant that when dh came home he couldn't get her excited and that we didn't have our dinner til later.
We just thought fuck it. We will put her to bed when she is tired. Best thing we ever did. Dd would go to bed at about 9/10, I'd start hugs and stories when she showed signs of becoming tired, she woke at 4 for a few weeks but it's shifted to about 7 am and stayed there. She rarely woke during the night.
She's 11 now and hasn't had a bedtime in that I say to her "get to bed" she's sot of set it herself and from the age she could do so herself she takes herself up at 8.30 on the dot to unwind by reading or watching bit of tv and wakes at 7.30. Weekends she may stay up til 10 or 11 but usually she's still taking herself up at 9 as she knows she's tired. She knows how she feels the next day if she hasn't had her usual amount of sleep.
She's always been in top sets and often top of the top set for everything from reception (I hate writing that because I don't want to sound smug or bragging), but her later bedtime isn't linked to lower school performance, I appreciate it might for others and that they do what works for them. Not that I'm saying she does well at school due to her bedtime either, she works hard and puts schoolwork first and has become brilliant at self organising her time, opposite of me at the age :)
I posted on a thread about differing adult guest bedtimes and has said I've found that when visiting family or holiday in with other families etc, it's the bedtimes of the children that cause problems.
Dd behaves perfectly and doesn't interrupt adults when they are talking, she provides better conversation than most of the pissed adults to be honest and will take herself to bed when they become "repetitive". Most of the adults don't mind her staying around until 9/10, my mum loves it as when hosting she doesn't actually sit down until 8 so she gets some time with dd.
But sometimes the family with kids going to bed at 6.30/7 say it's not fair as their similar aged DS wont sleep, and apparently it's because dd isn't going to bed also. Ok, can see her point, so we tried to suggest all sorts of things, dd agreeing to go up at 8 if her cousins coukd stay up an hour later,, nope not good enough, finally dd said she would go up at 6.30 and just read her books, oh no, it's lights of and lying there, reading a book will keep her DC awake. Their routine works for them, (kind of but that's another thread) but it's unfair to expect others the all follow it to the letter, if she was hosting, absolutely, dd would follow their rules but not at someone worse house. I ended up saying that as neice is a smart girl she will understand when she tells her the reason my dd is still up is because her Mum and Dad have different rules because it's what works for them. Just like they can't jump on the sofa at grabs like they can at home.