Our twins (5 yr old) have never been brill sleepers. Lately I have been on a(nother) severe training spree after they started yet another phase of waking up at 5am. This involves me getting up loads of times in the night and early morning, explaining again that they need to stay in bed until the sun comes up (they have a gro clock), and, if there's one star left, persuading them to read quietly and whisper if they want to say anything to each other. (They never go back to sleep at this point.)
I can't sleep once they're talking and have a chronic condition which makes me very, very tired and achey the more I get up which is part of my motivation. I am also the breadwinner of the family so need to get as much sleep as I can.
T2 was ill the night before last, and about 6am this morn he was sick again a little. I put a towel over his sheet and asked him to try and sleep some more as he was obviously tired. 10 mins later T1 comes to tell me T2 has been sick again. I ask DH to deal with it this time. There isn't much despite T1's description but apparently requires DH to strip the bed. He tells T2 to take his pyjamas off as they're wet. Then he tells him to get dressed, rather than put on more pyjamas, and doesn't put new sheets on his bed either. Bearing in mind that it isn't that early any more BUT their sun isn't up yet! DH gets back into bed and falls asleep, as usual.
The twins start chatting loudly and I am wide awake by this point, so I go see what they're doing. Turns out they are both very confused, they think it's morning, T1 wants to go downstairs, T2 is sitting on the floor with no clothes on upset coz he wants to go back in bed and rest, but can't coz his bed's not made. So I make the bed and help him get dressed - but now he's in clothes, not pyjamas, coz that's what he'd started doing - and then he asks for me to brush his teeth as his mouth tastes funny... T1 has started playing by this point (and is also dressed), and wants to go downstairs but I have to explain again that it's not time to get up. By this point after having teeth brushed T2 has decided he'd rather play, after all that. (Typical!)
Now I won't get any more sleep guaranteed. Again. They play for 5 mins and then T2 is retching again so I go check on him. Their sun comes up at this point - yay... T1 says 'yay we can go downstairs and have breakfast' so I tell him to go ask daddy for that (coz there's no way I am!) So off he goes with his older brother who is up and dressed by now. And then T2 comes for a cuddle with me in bed. And stays there for ages coz he's tired, what a surprise.
AIBU to be annoyed that DH has just blatantly ignored all the sleep training I've been doing (and yes, it has been collective but let's face it, it's mostly me) and, knowing our boys, has probably put us back to square one i.e. the 'we can get up whenever we like regardless of whether the sun's up' situation?!
And yes I did mostly just want a moan. It's so damned frustrating and tiring trying to sleep train and I absolutely despise and loathe it. 
They used to wake up 5-6 times a night EACH so this is definite improvement, but it's just so hard to keep going when I'm so tired all the time AND also now trying to work.