I have no advice on sleep issues. If I write about why, we'll be into the fourth page before I'm done.

I do have a question of my own, for you mamas.
Today a friend invited me out to a meeting (organic growers; I would looove to go), but dp is at work, which she knew, so she and her dh had called offerring for her dh to look after our four boys for four hrs while I'm away with his wife.
I have never left our four boys with anyone. I cannot imagine being comfortable with leaving our four boys with
one person. He and his wife raised one son who is now grown and moved out and they had a baby in their home last summer for a few months with their niece (the baby's mother).
I trust my friends, but I think that this proposition would be like jumping into an unknown lake from very high up given that he has never looked after so many children at once, our boys have never been looked after by him or anyone else (well, except the oldest two who were looked after twice as infant and toddler while ds3 was being birthed and one other time), AND it would be the first time for me as well, and none of us knows or is sure of how things will go.
My friends thought that his having grown up with 8 siblings would be adequate for experience with this, but I pointed out that he was a sibling, and not in charge of meeting his siblings' needs; his mum did that.
Any time someone thinks their experience as a child is adequate preparation for child-rearing or care-taking, I am leery. Their son is also 21 yrs old, so it's been a long while since he's dealt with the needs of a 28 month old, and children from that age to 6 yrs.
Do you leave your young closely spaced children with others (one untried, unproven person alone)? Would you leave your four children in this situation? I said no. It took dp a few hours of reflection to come to that conclusion, but if it were just his decision, he said that he would have been fine with it. BUT he does agree that my concerns are valid and reason enough to not do it. He just wouldn't have thought of it that way to begin with. But I do, so he is in agreement.
My dp suggested that perhaps we could ask them if they'd like to look after our boys together while dp and I go out for a few hours. That way, there are two of them to problem-solve and make decisions. But even then, while we've know our friends for nearly two years, we haven't spent enough time for them to be really aware of how we live, which isn't completely necessary with our boys because they are very verbal and confident and can inform if necessary, BUT in a worse-case scenario, if they had to involve someone else, they wouldn't know what our decisions would be. I would prefer that those sorts of things be known between us before they look after our children.
Also, our boys all have ADD in varying degrees and manifestations. We have an enormous 'tool box' for helping each one thrive and not end up being overwhelmed or becoming unruly and miserable, while maintaining respect and compassion for them. We are by no means strict, but we do a lot of work to make things run chaotically here. "Smoothly" is impossible, and "chaotically" is as good as it gets because the alternative is just rotten and miserable.
I am an expert at navigating the relationships here, and much of the time, I have to do that with dp too, because he is just not as aware and also doesn't spend as much time at home as I do. Anyway, other people have no chance at this, which is one reason why I stay home. Because I do so much work, others (including these friends) have no idea what goes on 'behind the scenes' to make things work here and what they see is the fruit of that labour, having no idea what the labour consists of for me, and for them should they take on looking after our boys. An hour or two or maybe three would be fine if I set it up for them, but four hrs with one person whose never done this before seems, well, potentially hazardous to me.
I just think that overall, the common idea that it's normal or healthy to leave children with people who do not know them very, very well, is one oftentimes of convenience or necessity, and neither of those situations exists for us. It is neither convenient nor necessary for our dc to be looked after by others right now, so it seems to me a risk not worth taking. They will not be 28 months to 6 yrs old forever, and while they are, decisions about their care are more critical than they will be in a few years, for instance.
What do you think, mamas?