My 17 month old son still wont sleep through the night?

Hi my son has a bottle at midnight witch as fine as we go to bed about then anyway but he nomally wakes up winging at least twice a night sometimes more. He doesnt completely wake just cries or winges untill i put his dummy/pacifier back in and I really want to get some sleep as my tiredness makes me grumpy. He has only a few times slept till 7ish without waking and im even more tired cause im not used to it. I really really want my sleep back as its been two years since i had my all night sleeps every night. Any ideas?