Just that really. They sleep from approx 8pm - 5am without waking, which is great, though I wish they'd wake a bit later. I start bedtime at about 7.
During the day, if they happen to fall asleep it will only be for 15 minutes tops. Maybe 3-4 times per day. They are so bloody grumpy because they're so tired. Whenever they show signs of being tired which is most of the day from lunchtime onwards I do my best to get them to sleep. Rocking (though that's tricky when there are two of them), time in the cots, darkened room, white noise. But they just won't go to sleep. I have also tried catching them before they get tired / doing a morning nap but they won't have that either.
I have resorted to taking them out in the car because they do sleep then, but as soon as the engine stops they wake up and I can't afford the petrol to keep doing this every day! I also have stuff I'd like to do while they sleep...
There's also a 50-50 chance of them falling asleep in the pram, so I try to get them out for a good walk every day, but it's not guaranteed to work and again it doesn't give me any time to get things done.
Any suggestions would be so appreciated.